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Finding the Fourth Proportional to 58,502.75, 87,753.65 and 30,408.30

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Solution

The fourth proportional to 58,502.75, 87,753.65 and 30,408.30 is: 45,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,502.75 : 87,753.65 = 30,408.30 : x
  2. Step 2: Convert to fraction form
    58,502.75/87,753.65 = 30,408.30/x
  3. Step 3: Cross multiply
    58,502.75x = 87,753.65 × 30,408.30
  4. Step 4: Simplify right side
    58,502.75x = 2,668,439,163.25
  5. Step 5: Solve for x
    x = 2,668,439,163.25/58,502.75
  6. Step 6: Final answer
    x = 45,612.20

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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.