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Finding the Fourth Proportional to 61,060.16, 84,234.84 and 39,557

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Solution

The fourth proportional to 61,060.16, 84,234.84 and 39,557 is: 54,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,060.16 : 84,234.84 = 39,557 : x
  2. Step 2: Convert to fraction form
    61,060.16/84,234.84 = 39,557/x
  3. Step 3: Cross multiply
    61,060.16x = 84,234.84 × 39,557
  4. Step 4: Simplify right side
    61,060.16x = 3,332,077,565.88
  5. Step 5: Solve for x
    x = 3,332,077,565.88/61,060.16
  6. Step 6: Final answer
    x = 54,570.40

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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.