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Finding the Fourth Proportional to 35,909.60, 53,867.10 and 9,613.76

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Solution

The fourth proportional to 35,909.60, 53,867.10 and 9,613.76 is: 14,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,909.60 : 53,867.10 = 9,613.76 : x
  2. Step 2: Convert to fraction form
    35,909.60/53,867.10 = 9,613.76/x
  3. Step 3: Cross multiply
    35,909.60x = 53,867.10 × 9,613.76
  4. Step 4: Simplify right side
    35,909.60x = 517,865,371.30
  5. Step 5: Solve for x
    x = 517,865,371.30/35,909.60
  6. Step 6: Final answer
    x = 14,421.36

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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.