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Finding the Fourth Proportional to 9,965,986.30, 14,948,979.45 and 9,965,986.30

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Solution

The fourth proportional to 9,965,986.30, 14,948,979.45 and 9,965,986.30 is: 14,948,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,986.30 : 14,948,979.45 = 9,965,986.30 : x
  2. Step 2: Convert to fraction form
    9,965,986.30/14,948,979.45 = 9,965,986.30/x
  3. Step 3: Cross multiply
    9,965,986.30x = 14,948,979.45 × 9,965,986.30
  4. Step 4: Simplify right side
    9,965,986.30x = 148,981,324,397,681.53
  5. Step 5: Solve for x
    x = 148,981,324,397,681.53/9,965,986.30
  6. Step 6: Final answer
    x = 14,948,979.45

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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.