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Finding the Fourth Proportional to 39,154.60, 58,741.02 and 11,454.76

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Solution

The fourth proportional to 39,154.60, 58,741.02 and 11,454.76 is: 17,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,154.60 : 58,741.02 = 11,454.76 : x
  2. Step 2: Convert to fraction form
    39,154.60/58,741.02 = 11,454.76/x
  3. Step 3: Cross multiply
    39,154.60x = 58,741.02 × 11,454.76
  4. Step 4: Simplify right side
    39,154.60x = 672,864,286.26
  5. Step 5: Solve for x
    x = 672,864,286.26/39,154.60
  6. Step 6: Final answer
    x = 17,184.81

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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.