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Finding the Fourth Proportional to 65,260.56, 97,890.90 and 17,872.18

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Solution

The fourth proportional to 65,260.56, 97,890.90 and 17,872.18 is: 26,808.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,260.56 : 97,890.90 = 17,872.18 : x
  2. Step 2: Convert to fraction form
    65,260.56/97,890.90 = 17,872.18/x
  3. Step 3: Cross multiply
    65,260.56x = 97,890.90 × 17,872.18
  4. Step 4: Simplify right side
    65,260.56x = 1,749,523,785.16
  5. Step 5: Solve for x
    x = 1,749,523,785.16/65,260.56
  6. Step 6: Final answer
    x = 26,808.29

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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.