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Finding the Fourth Proportional to 69,487.04, 95,887.92 and 40,802.56

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Solution

The fourth proportional to 69,487.04, 95,887.92 and 40,802.56 is: 56,305.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,487.04 : 95,887.92 = 40,802.56 : x
  2. Step 2: Convert to fraction form
    69,487.04/95,887.92 = 40,802.56/x
  3. Step 3: Cross multiply
    69,487.04x = 95,887.92 × 40,802.56
  4. Step 4: Simplify right side
    69,487.04x = 3,912,472,609.08
  5. Step 5: Solve for x
    x = 3,912,472,609.08/69,487.04
  6. Step 6: Final answer
    x = 56,305.07

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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.