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Finding the Fourth Proportional to 38,326.64, 52,876.02 and 28,279.02

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Solution

The fourth proportional to 38,326.64, 52,876.02 and 28,279.02 is: 39,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,326.64 : 52,876.02 = 28,279.02 : x
  2. Step 2: Convert to fraction form
    38,326.64/52,876.02 = 28,279.02/x
  3. Step 3: Cross multiply
    38,326.64x = 52,876.02 × 28,279.02
  4. Step 4: Simplify right side
    38,326.64x = 1,495,282,331.43
  5. Step 5: Solve for x
    x = 1,495,282,331.43/38,326.64
  6. Step 6: Final answer
    x = 39,014.18

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Why These Related Problems?

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