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Finding the Fourth Proportional to 6,543,666.92, 9,815,502.87 and 6,534,211.03

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Solution

The fourth proportional to 6,543,666.92, 9,815,502.87 and 6,534,211.03 is: 9,801,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543,666.92 : 9,815,502.87 = 6,534,211.03 : x
  2. Step 2: Convert to fraction form
    6,543,666.92/9,815,502.87 = 6,534,211.03/x
  3. Step 3: Cross multiply
    6,543,666.92x = 9,815,502.87 × 6,534,211.03
  4. Step 4: Simplify right side
    6,543,666.92x = 64,136,567,139,595.47
  5. Step 5: Solve for x
    x = 64,136,567,139,595.47/6,543,666.92
  6. Step 6: Final answer
    x = 9,801,319.04

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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.