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Finding the Fourth Proportional to 9,969,989.85, 14,948,995.57 and 3,897,489.11

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Solution

The fourth proportional to 9,969,989.85, 14,948,995.57 and 3,897,489.11 is: 5,843,892.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969,989.85 : 14,948,995.57 = 3,897,489.11 : x
  2. Step 2: Convert to fraction form
    9,969,989.85/14,948,995.57 = 3,897,489.11/x
  3. Step 3: Cross multiply
    9,969,989.85x = 14,948,995.57 × 3,897,489.11
  4. Step 4: Simplify right side
    9,969,989.85x = 58,263,547,355,024.55
  5. Step 5: Solve for x
    x = 58,263,547,355,024.55/9,969,989.85
  6. Step 6: Final answer
    x = 5,843,892.34

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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.