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Finding the Fourth Proportional to 7,266,921.80, 10,924,002.30 and 5,151,655.40

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Solution

The fourth proportional to 7,266,921.80, 10,924,002.30 and 5,151,655.40 is: 7,744,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,266,921.80 : 10,924,002.30 = 5,151,655.40 : x
  2. Step 2: Convert to fraction form
    7,266,921.80/10,924,002.30 = 5,151,655.40/x
  3. Step 3: Cross multiply
    7,266,921.80x = 10,924,002.30 × 5,151,655.40
  4. Step 4: Simplify right side
    7,266,921.80x = 56,276,695,438,407.43
  5. Step 5: Solve for x
    x = 56,276,695,438,407.43/7,266,921.80
  6. Step 6: Final answer
    x = 7,744,227.47

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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.