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Finding the Fourth Proportional to 58,424.40, 87,635.52 and 39,657.96

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Solution

The fourth proportional to 58,424.40, 87,635.52 and 39,657.96 is: 59,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,424.40 : 87,635.52 = 39,657.96 : x
  2. Step 2: Convert to fraction form
    58,424.40/87,635.52 = 39,657.96/x
  3. Step 3: Cross multiply
    58,424.40x = 87,635.52 × 39,657.96
  4. Step 4: Simplify right side
    58,424.40x = 3,475,445,946.74
  5. Step 5: Solve for x
    x = 3,475,445,946.74/58,424.40
  6. Step 6: Final answer
    x = 59,486.21

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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.