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Finding the Fourth Proportional to 25,657.92, 38,483.16 and 6,939.05

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Solution

The fourth proportional to 25,657.92, 38,483.16 and 6,939.05 is: 10,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,657.92 : 38,483.16 = 6,939.05 : x
  2. Step 2: Convert to fraction form
    25,657.92/38,483.16 = 6,939.05/x
  3. Step 3: Cross multiply
    25,657.92x = 38,483.16 × 6,939.05
  4. Step 4: Simplify right side
    25,657.92x = 267,036,378.98
  5. Step 5: Solve for x
    x = 267,036,378.98/25,657.92
  6. Step 6: Final answer
    x = 10,407.56

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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.