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Finding the Fourth Proportional to 10,961,794.60, 16,442,691.90 and 10,439,247.40

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Solution

The fourth proportional to 10,961,794.60, 16,442,691.90 and 10,439,247.40 is: 15,658,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961,794.60 : 16,442,691.90 = 10,439,247.40 : x
  2. Step 2: Convert to fraction form
    10,961,794.60/16,442,691.90 = 10,439,247.40/x
  3. Step 3: Cross multiply
    10,961,794.60x = 16,442,691.90 × 10,439,247.40
  4. Step 4: Simplify right side
    10,961,794.60x = 171,649,328,666,076.06
  5. Step 5: Solve for x
    x = 171,649,328,666,076.06/10,961,794.60
  6. Step 6: Final answer
    x = 15,658,871.10

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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.