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Finding the Fourth Proportional to 25,948.35, 38,920.91 and 9,307.91

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Solution

The fourth proportional to 25,948.35, 38,920.91 and 9,307.91 is: 13,961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,948.35 : 38,920.91 = 9,307.91 : x
  2. Step 2: Convert to fraction form
    25,948.35/38,920.91 = 9,307.91/x
  3. Step 3: Cross multiply
    25,948.35x = 38,920.91 × 9,307.91
  4. Step 4: Simplify right side
    25,948.35x = 362,272,378.16
  5. Step 5: Solve for x
    x = 362,272,378.16/25,948.35
  6. Step 6: Final answer
    x = 13,961.29

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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.