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Finding the Fourth Proportional to 8,857,686.30, 13,267,867.05 and 7,364,694.30

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Solution

The fourth proportional to 8,857,686.30, 13,267,867.05 and 7,364,694.30 is: 11,031,524.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857,686.30 : 13,267,867.05 = 7,364,694.30 : x
  2. Step 2: Convert to fraction form
    8,857,686.30/13,267,867.05 = 7,364,694.30/x
  3. Step 3: Cross multiply
    8,857,686.30x = 13,267,867.05 × 7,364,694.30
  4. Step 4: Simplify right side
    8,857,686.30x = 97,713,784,836,292.81
  5. Step 5: Solve for x
    x = 97,713,784,836,292.81/8,857,686.30
  6. Step 6: Final answer
    x = 11,031,524.66

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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.