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Finding the Fourth Proportional to 61,572.96, 84,940.61 and 38,901.06

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Solution

The fourth proportional to 61,572.96, 84,940.61 and 38,901.06 is: 53,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,572.96 : 84,940.61 = 38,901.06 : x
  2. Step 2: Convert to fraction form
    61,572.96/84,940.61 = 38,901.06/x
  3. Step 3: Cross multiply
    61,572.96x = 84,940.61 × 38,901.06
  4. Step 4: Simplify right side
    61,572.96x = 3,304,279,571.54
  5. Step 5: Solve for x
    x = 3,304,279,571.54/61,572.96
  6. Step 6: Final answer
    x = 53,664.46

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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.