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Finding the Fourth Proportional to 58,318.72, 87,482.01 and 19,834.54

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Solution

The fourth proportional to 58,318.72, 87,482.01 and 19,834.54 is: 29,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,318.72 : 87,482.01 = 19,834.54 : x
  2. Step 2: Convert to fraction form
    58,318.72/87,482.01 = 19,834.54/x
  3. Step 3: Cross multiply
    58,318.72x = 87,482.01 × 19,834.54
  4. Step 4: Simplify right side
    58,318.72x = 1,735,165,774.39
  5. Step 5: Solve for x
    x = 1,735,165,774.39/58,318.72
  6. Step 6: Final answer
    x = 29,753.15

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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.