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Finding the Fourth Proportional to 5,016.48, 6,922.80 and 2,920.80

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Solution

The fourth proportional to 5,016.48, 6,922.80 and 2,920.80 is: 4,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,016.48 : 6,922.80 = 2,920.80 : x
  2. Step 2: Convert to fraction form
    5,016.48/6,922.80 = 2,920.80/x
  3. Step 3: Cross multiply
    5,016.48x = 6,922.80 × 2,920.80
  4. Step 4: Simplify right side
    5,016.48x = 20,220,114.24
  5. Step 5: Solve for x
    x = 20,220,114.24/5,016.48
  6. Step 6: Final answer
    x = 4,030.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.