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Finding the Fourth Proportional to 58,487.52, 87,527.12 and 47,834.40

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Solution

The fourth proportional to 58,487.52, 87,527.12 and 47,834.40 is: 71,584.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,487.52 : 87,527.12 = 47,834.40 : x
  2. Step 2: Convert to fraction form
    58,487.52/87,527.12 = 47,834.40/x
  3. Step 3: Cross multiply
    58,487.52x = 87,527.12 × 47,834.40
  4. Step 4: Simplify right side
    58,487.52x = 4,186,807,268.93
  5. Step 5: Solve for x
    x = 4,186,807,268.93/58,487.52
  6. Step 6: Final answer
    x = 71,584.63

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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.