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Finding the Fourth Proportional to 39,771.52, 59,664.48 and 16,385.20

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Solution

The fourth proportional to 39,771.52, 59,664.48 and 16,385.20 is: 24,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,771.52 : 59,664.48 = 16,385.20 : x
  2. Step 2: Convert to fraction form
    39,771.52/59,664.48 = 16,385.20/x
  3. Step 3: Cross multiply
    39,771.52x = 59,664.48 × 16,385.20
  4. Step 4: Simplify right side
    39,771.52x = 977,614,437.70
  5. Step 5: Solve for x
    x = 977,614,437.70/39,771.52
  6. Step 6: Final answer
    x = 24,580.77

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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.