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Finding the Fourth Proportional to 35,496.80, 53,251.48 and 12,117.76

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Solution

The fourth proportional to 35,496.80, 53,251.48 and 12,117.76 is: 18,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,496.80 : 53,251.48 = 12,117.76 : x
  2. Step 2: Convert to fraction form
    35,496.80/53,251.48 = 12,117.76/x
  3. Step 3: Cross multiply
    35,496.80x = 53,251.48 × 12,117.76
  4. Step 4: Simplify right side
    35,496.80x = 645,288,654.28
  5. Step 5: Solve for x
    x = 645,288,654.28/35,496.80
  6. Step 6: Final answer
    x = 18,178.78

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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.