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Finding the Fourth Proportional to 8,971,649.30, 13,441,435.95 and 5,459,813.30

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Solution

The fourth proportional to 8,971,649.30, 13,441,435.95 and 5,459,813.30 is: 8,179,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971,649.30 : 13,441,435.95 = 5,459,813.30 : x
  2. Step 2: Convert to fraction form
    8,971,649.30/13,441,435.95 = 5,459,813.30/x
  3. Step 3: Cross multiply
    8,971,649.30x = 13,441,435.95 × 5,459,813.30
  4. Step 4: Simplify right side
    8,971,649.30x = 73,387,730,770,908.12
  5. Step 5: Solve for x
    x = 73,387,730,770,908.12/8,971,649.30
  6. Step 6: Final answer
    x = 8,179,959.82

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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.