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Finding the Fourth Proportional to 25,691.59, 38,539.95 and 6,971.93

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Solution

The fourth proportional to 25,691.59, 38,539.95 and 6,971.93 is: 10,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.59 : 38,539.95 = 6,971.93 : x
  2. Step 2: Convert to fraction form
    25,691.59/38,539.95 = 6,971.93/x
  3. Step 3: Cross multiply
    25,691.59x = 38,539.95 × 6,971.93
  4. Step 4: Simplify right side
    25,691.59x = 268,697,833.60
  5. Step 5: Solve for x
    x = 268,697,833.60/25,691.59
  6. Step 6: Final answer
    x = 10,458.59

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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.