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Finding the Fourth Proportional to 58,087.80, 87,129.90 and 16,534.80

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Solution

The fourth proportional to 58,087.80, 87,129.90 and 16,534.80 is: 24,801.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,087.80 : 87,129.90 = 16,534.80 : x
  2. Step 2: Convert to fraction form
    58,087.80/87,129.90 = 16,534.80/x
  3. Step 3: Cross multiply
    58,087.80x = 87,129.90 × 16,534.80
  4. Step 4: Simplify right side
    58,087.80x = 1,440,675,470.52
  5. Step 5: Solve for x
    x = 1,440,675,470.52/58,087.80
  6. Step 6: Final answer
    x = 24,801.69

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1.5x scale

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.