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Finding the Fourth Proportional to 65,717.91, 98,605.11 and 21,358.26

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Solution

The fourth proportional to 65,717.91, 98,605.11 and 21,358.26 is: 32,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,717.91 : 98,605.11 = 21,358.26 : x
  2. Step 2: Convert to fraction form
    65,717.91/98,605.11 = 21,358.26/x
  3. Step 3: Cross multiply
    65,717.91x = 98,605.11 × 21,358.26
  4. Step 4: Simplify right side
    65,717.91x = 2,106,033,576.71
  5. Step 5: Solve for x
    x = 2,106,033,576.71/65,717.91
  6. Step 6: Final answer
    x = 32,046.57

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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.