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Finding the Fourth Proportional to 17,807,641.60, 26,679,969.60 and 15,099,260.80

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Solution

The fourth proportional to 17,807,641.60, 26,679,969.60 and 15,099,260.80 is: 22,622,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,807,641.60 : 26,679,969.60 = 15,099,260.80 : x
  2. Step 2: Convert to fraction form
    17,807,641.60/26,679,969.60 = 15,099,260.80/x
  3. Step 3: Cross multiply
    17,807,641.60x = 26,679,969.60 × 15,099,260.80
  4. Step 4: Simplify right side
    17,807,641.60x = 402,847,819,126,471.75
  5. Step 5: Solve for x
    x = 402,847,819,126,471.75/17,807,641.60
  6. Step 6: Final answer
    x = 22,622,188.17

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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.