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Finding the Fourth Proportional to 58,332.90, 87,513.30 and 18,890.04

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Solution

The fourth proportional to 58,332.90, 87,513.30 and 18,890.04 is: 28,339.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,332.90 : 87,513.30 = 18,890.04 : x
  2. Step 2: Convert to fraction form
    58,332.90/87,513.30 = 18,890.04/x
  3. Step 3: Cross multiply
    58,332.90x = 87,513.30 × 18,890.04
  4. Step 4: Simplify right side
    58,332.90x = 1,653,129,737.53
  5. Step 5: Solve for x
    x = 1,653,129,737.53/58,332.90
  6. Step 6: Final answer
    x = 28,339.58

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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.