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Finding the Fourth Proportional to 64,658.39, 96,987.44 and 17,911.13

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Solution

The fourth proportional to 64,658.39, 96,987.44 and 17,911.13 is: 26,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,658.39 : 96,987.44 = 17,911.13 : x
  2. Step 2: Convert to fraction form
    64,658.39/96,987.44 = 17,911.13/x
  3. Step 3: Cross multiply
    64,658.39x = 96,987.44 × 17,911.13
  4. Step 4: Simplify right side
    64,658.39x = 1,737,154,206.05
  5. Step 5: Solve for x
    x = 1,737,154,206.05/64,658.39
  6. Step 6: Final answer
    x = 26,866.65

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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.