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Finding the Fourth Proportional to 7,000,809.20, 10,488,772.20 and 6,005,481.20

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Solution

The fourth proportional to 7,000,809.20, 10,488,772.20 and 6,005,481.20 is: 8,997,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000,809.20 : 10,488,772.20 = 6,005,481.20 : x
  2. Step 2: Convert to fraction form
    7,000,809.20/10,488,772.20 = 6,005,481.20/x
  3. Step 3: Cross multiply
    7,000,809.20x = 10,488,772.20 × 6,005,481.20
  4. Step 4: Simplify right side
    7,000,809.20x = 62,990,124,258,182.64
  5. Step 5: Solve for x
    x = 62,990,124,258,182.64/7,000,809.20
  6. Step 6: Final answer
    x = 8,997,549.06

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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.