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Finding the Fourth Proportional to 25,356.40, 38,045.40 and 16,003.60

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Solution

The fourth proportional to 25,356.40, 38,045.40 and 16,003.60 is: 24,012.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,356.40 : 38,045.40 = 16,003.60 : x
  2. Step 2: Convert to fraction form
    25,356.40/38,045.40 = 16,003.60/x
  3. Step 3: Cross multiply
    25,356.40x = 38,045.40 × 16,003.60
  4. Step 4: Simplify right side
    25,356.40x = 608,863,363.44
  5. Step 5: Solve for x
    x = 608,863,363.44/25,356.40
  6. Step 6: Final answer
    x = 24,012.22

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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.