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Finding the Fourth Proportional to 16,748,987.20, 25,123,480.80 and 16,040,399.20

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Solution

The fourth proportional to 16,748,987.20, 25,123,480.80 and 16,040,399.20 is: 24,060,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,748,987.20 : 25,123,480.80 = 16,040,399.20 : x
  2. Step 2: Convert to fraction form
    16,748,987.20/25,123,480.80 = 16,040,399.20/x
  3. Step 3: Cross multiply
    16,748,987.20x = 25,123,480.80 × 16,040,399.20
  4. Step 4: Simplify right side
    16,748,987.20x = 402,990,661,325,535.38
  5. Step 5: Solve for x
    x = 402,990,661,325,535.38/16,748,987.20
  6. Step 6: Final answer
    x = 24,060,598.80

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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.