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Finding the Fourth Proportional to 7,108,514.92, 9,799,547.64 and 5,067,781.48

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Solution

The fourth proportional to 7,108,514.92, 9,799,547.64 and 5,067,781.48 is: 6,986,264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108,514.92 : 9,799,547.64 = 5,067,781.48 : x
  2. Step 2: Convert to fraction form
    7,108,514.92/9,799,547.64 = 5,067,781.48/x
  3. Step 3: Cross multiply
    7,108,514.92x = 9,799,547.64 × 5,067,781.48
  4. Step 4: Simplify right side
    7,108,514.92x = 49,661,966,042,369.71
  5. Step 5: Solve for x
    x = 49,661,966,042,369.71/7,108,514.92
  6. Step 6: Final answer
    x = 6,986,264.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.