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Finding the Fourth Proportional to 8,981,031.40, 13,471,547.10 and 8,981,031.40

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Solution

The fourth proportional to 8,981,031.40, 13,471,547.10 and 8,981,031.40 is: 13,471,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981,031.40 : 13,471,547.10 = 8,981,031.40 : x
  2. Step 2: Convert to fraction form
    8,981,031.40/13,471,547.10 = 8,981,031.40/x
  3. Step 3: Cross multiply
    8,981,031.40x = 13,471,547.10 × 8,981,031.40
  4. Step 4: Simplify right side
    8,981,031.40x = 120,988,387,511,678.94
  5. Step 5: Solve for x
    x = 120,988,387,511,678.94/8,981,031.40
  6. Step 6: Final answer
    x = 13,471,547.10

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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.