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Finding the Fourth Proportional to 92,407.56, 138,620.16 and 25,847.76

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Solution

The fourth proportional to 92,407.56, 138,620.16 and 25,847.76 is: 38,774.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,407.56 : 138,620.16 = 25,847.76 : x
  2. Step 2: Convert to fraction form
    92,407.56/138,620.16 = 25,847.76/x
  3. Step 3: Cross multiply
    92,407.56x = 138,620.16 × 25,847.76
  4. Step 4: Simplify right side
    92,407.56x = 3,583,020,626.84
  5. Step 5: Solve for x
    x = 3,583,020,626.84/92,407.56
  6. Step 6: Final answer
    x = 38,774.11

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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.