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Finding the Fourth Proportional to 58,721.76, 87,864.12 and 35,041.92

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Solution

The fourth proportional to 58,721.76, 87,864.12 and 35,041.92 is: 52,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,721.76 : 87,864.12 = 35,041.92 : x
  2. Step 2: Convert to fraction form
    58,721.76/87,864.12 = 35,041.92/x
  3. Step 3: Cross multiply
    58,721.76x = 87,864.12 × 35,041.92
  4. Step 4: Simplify right side
    58,721.76x = 3,078,927,463.91
  5. Step 5: Solve for x
    x = 3,078,927,463.91/58,721.76
  6. Step 6: Final answer
    x = 52,432.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.