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Finding the Fourth Proportional to 5,047.74, 6,965.91 and 3,056.90

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Solution

The fourth proportional to 5,047.74, 6,965.91 and 3,056.90 is: 4,218.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,047.74 : 6,965.91 = 3,056.90 : x
  2. Step 2: Convert to fraction form
    5,047.74/6,965.91 = 3,056.90/x
  3. Step 3: Cross multiply
    5,047.74x = 6,965.91 × 3,056.90
  4. Step 4: Simplify right side
    5,047.74x = 21,294,055.45
  5. Step 5: Solve for x
    x = 21,294,055.45/5,047.74
  6. Step 6: Final answer
    x = 4,218.53

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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.