Home / 17,054.76-23,520.15-13,422.36

Finding the Fourth Proportional to 17,054.76, 23,520.15 and 13,422.36

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Solution

The fourth proportional to 17,054.76, 23,520.15 and 13,422.36 is: 18,510.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,054.76 : 23,520.15 = 13,422.36 : x
  2. Step 2: Convert to fraction form
    17,054.76/23,520.15 = 13,422.36/x
  3. Step 3: Cross multiply
    17,054.76x = 23,520.15 × 13,422.36
  4. Step 4: Simplify right side
    17,054.76x = 315,695,920.55
  5. Step 5: Solve for x
    x = 315,695,920.55/17,054.76
  6. Step 6: Final answer
    x = 18,510.72

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.