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Finding the Fourth Proportional to 69,113.98, 95,386.44 and 38,905.17

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Solution

The fourth proportional to 69,113.98, 95,386.44 and 38,905.17 is: 53,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,113.98 : 95,386.44 = 38,905.17 : x
  2. Step 2: Convert to fraction form
    69,113.98/95,386.44 = 38,905.17/x
  3. Step 3: Cross multiply
    69,113.98x = 95,386.44 × 38,905.17
  4. Step 4: Simplify right side
    69,113.98x = 3,711,025,186.96
  5. Step 5: Solve for x
    x = 3,711,025,186.96/69,113.98
  6. Step 6: Final answer
    x = 53,694.28

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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.