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Finding the Fourth Proportional to 64,521.70, 96,780.52 and 17,774.17

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Solution

The fourth proportional to 64,521.70, 96,780.52 and 17,774.17 is: 26,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,521.70 : 96,780.52 = 17,774.17 : x
  2. Step 2: Convert to fraction form
    64,521.70/96,780.52 = 17,774.17/x
  3. Step 3: Cross multiply
    64,521.70x = 96,780.52 × 17,774.17
  4. Step 4: Simplify right side
    64,521.70x = 1,720,193,195.43
  5. Step 5: Solve for x
    x = 1,720,193,195.43/64,521.70
  6. Step 6: Final answer
    x = 26,660.69

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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.