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Finding the Fourth Proportional to 12,043.20, 16,636.16 and 10,925.40

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Solution

The fourth proportional to 12,043.20, 16,636.16 and 10,925.40 is: 15,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043.20 : 16,636.16 = 10,925.40 : x
  2. Step 2: Convert to fraction form
    12,043.20/16,636.16 = 10,925.40/x
  3. Step 3: Cross multiply
    12,043.20x = 16,636.16 × 10,925.40
  4. Step 4: Simplify right side
    12,043.20x = 181,756,702.46
  5. Step 5: Solve for x
    x = 181,756,702.46/12,043.20
  6. Step 6: Final answer
    x = 15,092.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.