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Finding the Fourth Proportional to 39,753.76, 59,630.64 and 12,051.76

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Solution

The fourth proportional to 39,753.76, 59,630.64 and 12,051.76 is: 18,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,753.76 : 59,630.64 = 12,051.76 : x
  2. Step 2: Convert to fraction form
    39,753.76/59,630.64 = 12,051.76/x
  3. Step 3: Cross multiply
    39,753.76x = 59,630.64 × 12,051.76
  4. Step 4: Simplify right side
    39,753.76x = 718,654,161.93
  5. Step 5: Solve for x
    x = 718,654,161.93/39,753.76
  6. Step 6: Final answer
    x = 18,077.64

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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.