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Finding the Fourth Proportional to 12,248.63, 18,373.78 and 4,853.08

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Solution

The fourth proportional to 12,248.63, 18,373.78 and 4,853.08 is: 7,279.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.63 : 18,373.78 = 4,853.08 : x
  2. Step 2: Convert to fraction form
    12,248.63/18,373.78 = 4,853.08/x
  3. Step 3: Cross multiply
    12,248.63x = 18,373.78 × 4,853.08
  4. Step 4: Simplify right side
    12,248.63x = 89,169,453.28
  5. Step 5: Solve for x
    x = 89,169,453.28/12,248.63
  6. Step 6: Final answer
    x = 7,279.95

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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.