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Finding the Fourth Proportional to 10,368.68, 15,544.43 and 4,040.42

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Solution

The fourth proportional to 10,368.68, 15,544.43 and 4,040.42 is: 6,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.68 : 15,544.43 = 4,040.42 : x
  2. Step 2: Convert to fraction form
    10,368.68/15,544.43 = 4,040.42/x
  3. Step 3: Cross multiply
    10,368.68x = 15,544.43 × 4,040.42
  4. Step 4: Simplify right side
    10,368.68x = 62,806,005.66
  5. Step 5: Solve for x
    x = 62,806,005.66/10,368.68
  6. Step 6: Final answer
    x = 6,057.28

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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.