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Finding the Fourth Proportional to 25,610.40, 38,420.96 and 8,970.97

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Solution

The fourth proportional to 25,610.40, 38,420.96 and 8,970.97 is: 13,458.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,610.40 : 38,420.96 = 8,970.97 : x
  2. Step 2: Convert to fraction form
    25,610.40/38,420.96 = 8,970.97/x
  3. Step 3: Cross multiply
    25,610.40x = 38,420.96 × 8,970.97
  4. Step 4: Simplify right side
    25,610.40x = 344,673,279.53
  5. Step 5: Solve for x
    x = 344,673,279.53/25,610.40
  6. Step 6: Final answer
    x = 13,458.33

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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.