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Finding the Fourth Proportional to 19,318,697.10, 28,978,045.65 and 9,241,001.10

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Solution

The fourth proportional to 19,318,697.10, 28,978,045.65 and 9,241,001.10 is: 13,861,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318,697.10 : 28,978,045.65 = 9,241,001.10 : x
  2. Step 2: Convert to fraction form
    19,318,697.10/28,978,045.65 = 9,241,001.10/x
  3. Step 3: Cross multiply
    19,318,697.10x = 28,978,045.65 × 9,241,001.10
  4. Step 4: Simplify right side
    19,318,697.10x = 267,786,151,727,500.19
  5. Step 5: Solve for x
    x = 267,786,151,727,500.19/19,318,697.10
  6. Step 6: Final answer
    x = 13,861,501.65

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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.