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Finding the Fourth Proportional to 7,932,403.80, 11,898,605.70 and 7,161,024.60

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Solution

The fourth proportional to 7,932,403.80, 11,898,605.70 and 7,161,024.60 is: 10,741,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932,403.80 : 11,898,605.70 = 7,161,024.60 : x
  2. Step 2: Convert to fraction form
    7,932,403.80/11,898,605.70 = 7,161,024.60/x
  3. Step 3: Cross multiply
    7,932,403.80x = 11,898,605.70 × 7,161,024.60
  4. Step 4: Simplify right side
    7,932,403.80x = 85,206,208,123,400.20
  5. Step 5: Solve for x
    x = 85,206,208,123,400.20/7,932,403.80
  6. Step 6: Final answer
    x = 10,741,536.90

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1.5x scale

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.