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Finding the Fourth Proportional to 61,385.79, 84,713.27 and 36,235.29

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Solution

The fourth proportional to 61,385.79, 84,713.27 and 36,235.29 is: 50,005.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,385.79 : 84,713.27 = 36,235.29 : x
  2. Step 2: Convert to fraction form
    61,385.79/84,713.27 = 36,235.29/x
  3. Step 3: Cross multiply
    61,385.79x = 84,713.27 × 36,235.29
  4. Step 4: Simplify right side
    61,385.79x = 3,069,609,724.12
  5. Step 5: Solve for x
    x = 3,069,609,724.12/61,385.79
  6. Step 6: Final answer
    x = 50,005.22

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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.