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Finding the Fourth Proportional to 6,272,973.76, 8,656,853.04 and 3,519,864.88

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Solution

The fourth proportional to 6,272,973.76, 8,656,853.04 and 3,519,864.88 is: 4,857,497.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,272,973.76 : 8,656,853.04 = 3,519,864.88 : x
  2. Step 2: Convert to fraction form
    6,272,973.76/8,656,853.04 = 3,519,864.88/x
  3. Step 3: Cross multiply
    6,272,973.76x = 8,656,853.04 × 3,519,864.88
  4. Step 4: Simplify right side
    6,272,973.76x = 30,470,952,986,817.23
  5. Step 5: Solve for x
    x = 30,470,952,986,817.23/6,272,973.76
  6. Step 6: Final answer
    x = 4,857,497.28

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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.