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Finding the Fourth Proportional to 10,843.59, 15,040.68 and 10,555.56

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Solution

The fourth proportional to 10,843.59, 15,040.68 and 10,555.56 is: 14,641.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,843.59 : 15,040.68 = 10,555.56 : x
  2. Step 2: Convert to fraction form
    10,843.59/15,040.68 = 10,555.56/x
  3. Step 3: Cross multiply
    10,843.59x = 15,040.68 × 10,555.56
  4. Step 4: Simplify right side
    10,843.59x = 158,762,800.18
  5. Step 5: Solve for x
    x = 158,762,800.18/10,843.59
  6. Step 6: Final answer
    x = 14,641.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.