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Finding the Fourth Proportional to 40,482.78, 60,727.80 and 10,899.96

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Solution

The fourth proportional to 40,482.78, 60,727.80 and 10,899.96 is: 16,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,482.78 : 60,727.80 = 10,899.96 : x
  2. Step 2: Convert to fraction form
    40,482.78/60,727.80 = 10,899.96/x
  3. Step 3: Cross multiply
    40,482.78x = 60,727.80 × 10,899.96
  4. Step 4: Simplify right side
    40,482.78x = 661,930,590.89
  5. Step 5: Solve for x
    x = 661,930,590.89/40,482.78
  6. Step 6: Final answer
    x = 16,350.92

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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.