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Finding the Fourth Proportional to 60,641.28, 90,971.64 and 25,586.10

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Solution

The fourth proportional to 60,641.28, 90,971.64 and 25,586.10 is: 38,383.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,641.28 : 90,971.64 = 25,586.10 : x
  2. Step 2: Convert to fraction form
    60,641.28/90,971.64 = 25,586.10/x
  3. Step 3: Cross multiply
    60,641.28x = 90,971.64 × 25,586.10
  4. Step 4: Simplify right side
    60,641.28x = 2,327,609,478.20
  5. Step 5: Solve for x
    x = 2,327,609,478.20/60,641.28
  6. Step 6: Final answer
    x = 38,383.25

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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.