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Finding the Fourth Proportional to 6,663,799.77, 9,988,143.21 and 3,062,124.47

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Solution

The fourth proportional to 6,663,799.77, 9,988,143.21 and 3,062,124.47 is: 4,589,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663,799.77 : 9,988,143.21 = 3,062,124.47 : x
  2. Step 2: Convert to fraction form
    6,663,799.77/9,988,143.21 = 3,062,124.47/x
  3. Step 3: Cross multiply
    6,663,799.77x = 9,988,143.21 × 3,062,124.47
  4. Step 4: Simplify right side
    6,663,799.77x = 30,584,937,758,175.71
  5. Step 5: Solve for x
    x = 30,584,937,758,175.71/6,663,799.77
  6. Step 6: Final answer
    x = 4,589,714.40

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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.