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Finding the Fourth Proportional to 13,908,002.40, 20,862,003.60 and 9,603,330.30

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Solution

The fourth proportional to 13,908,002.40, 20,862,003.60 and 9,603,330.30 is: 14,404,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908,002.40 : 20,862,003.60 = 9,603,330.30 : x
  2. Step 2: Convert to fraction form
    13,908,002.40/20,862,003.60 = 9,603,330.30/x
  3. Step 3: Cross multiply
    13,908,002.40x = 20,862,003.60 × 9,603,330.30
  4. Step 4: Simplify right side
    13,908,002.40x = 200,344,711,290,589.12
  5. Step 5: Solve for x
    x = 200,344,711,290,589.12/13,908,002.40
  6. Step 6: Final answer
    x = 14,404,995.45

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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.