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Finding the Fourth Proportional to 65,575.72, 98,374.79 and 20,588.46

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Solution

The fourth proportional to 65,575.72, 98,374.79 and 20,588.46 is: 30,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,575.72 : 98,374.79 = 20,588.46 : x
  2. Step 2: Convert to fraction form
    65,575.72/98,374.79 = 20,588.46/x
  3. Step 3: Cross multiply
    65,575.72x = 98,374.79 × 20,588.46
  4. Step 4: Simplify right side
    65,575.72x = 2,025,385,428.92
  5. Step 5: Solve for x
    x = 2,025,385,428.92/65,575.72
  6. Step 6: Final answer
    x = 30,886.21

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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.