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Finding the Fourth Proportional to 7,266,926.80, 10,924,009.80 and 5,151,660.40

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Solution

The fourth proportional to 7,266,926.80, 10,924,009.80 and 5,151,660.40 is: 7,744,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,266,926.80 : 10,924,009.80 = 5,151,660.40 : x
  2. Step 2: Convert to fraction form
    7,266,926.80/10,924,009.80 = 5,151,660.40/x
  3. Step 3: Cross multiply
    7,266,926.80x = 10,924,009.80 × 5,151,660.40
  4. Step 4: Simplify right side
    7,266,926.80x = 56,276,788,695,871.93
  5. Step 5: Solve for x
    x = 56,276,788,695,871.93/7,266,926.80
  6. Step 6: Final answer
    x = 7,744,234.98

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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.