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Finding the Fourth Proportional to 25,801.35, 38,702.88 and 9,161.16

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Solution

The fourth proportional to 25,801.35, 38,702.88 and 9,161.16 is: 13,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,801.35 : 38,702.88 = 9,161.16 : x
  2. Step 2: Convert to fraction form
    25,801.35/38,702.88 = 9,161.16/x
  3. Step 3: Cross multiply
    25,801.35x = 38,702.88 × 9,161.16
  4. Step 4: Simplify right side
    25,801.35x = 354,563,276.14
  5. Step 5: Solve for x
    x = 354,563,276.14/25,801.35
  6. Step 6: Final answer
    x = 13,742.04

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1.5x scale

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.