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Finding the Fourth Proportional to 8,971,641.80, 13,441,424.70 and 5,459,805.80

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Solution

The fourth proportional to 8,971,641.80, 13,441,424.70 and 5,459,805.80 is: 8,179,948.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971,641.80 : 13,441,424.70 = 5,459,805.80 : x
  2. Step 2: Convert to fraction form
    8,971,641.80/13,441,424.70 = 5,459,805.80/x
  3. Step 3: Cross multiply
    8,971,641.80x = 13,441,424.70 × 5,459,805.80
  4. Step 4: Simplify right side
    8,971,641.80x = 73,387,568,537,323.25
  5. Step 5: Solve for x
    x = 73,387,568,537,323.25/8,971,641.80
  6. Step 6: Final answer
    x = 8,179,948.57

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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.