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Finding the Fourth Proportional to 2,014.80, 2,827.20 and 2,014.80

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Solution

The fourth proportional to 2,014.80, 2,827.20 and 2,014.80 is: 2,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.80 : 2,827.20 = 2,014.80 : x
  2. Step 2: Convert to fraction form
    2,014.80/2,827.20 = 2,014.80/x
  3. Step 3: Cross multiply
    2,014.80x = 2,827.20 × 2,014.80
  4. Step 4: Simplify right side
    2,014.80x = 5,696,242.56
  5. Step 5: Solve for x
    x = 5,696,242.56/2,014.80
  6. Step 6: Final answer
    x = 2,827.20

Related Problems

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Half scale
Find fourth proportional to 4,029.60, 5,654.40 and 4,029.60
Double scale
Find fourth proportional to 2,015.80, 2,828.60 and 2,015.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.