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Finding the Fourth Proportional to 9,781,812.90, 14,672,719.35 and 4,998,843.90

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Solution

The fourth proportional to 9,781,812.90, 14,672,719.35 and 4,998,843.90 is: 7,498,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781,812.90 : 14,672,719.35 = 4,998,843.90 : x
  2. Step 2: Convert to fraction form
    9,781,812.90/14,672,719.35 = 4,998,843.90/x
  3. Step 3: Cross multiply
    9,781,812.90x = 14,672,719.35 × 4,998,843.90
  4. Step 4: Simplify right side
    9,781,812.90x = 73,346,633,619,159.47
  5. Step 5: Solve for x
    x = 73,346,633,619,159.47/9,781,812.90
  6. Step 6: Final answer
    x = 7,498,265.85

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Similar ratio
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1.5x scale

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.