Home / 18,521.88-25,559.55-10,566.69

Finding the Fourth Proportional to 18,521.88, 25,559.55 and 10,566.69

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Solution

The fourth proportional to 18,521.88, 25,559.55 and 10,566.69 is: 14,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.88 : 25,559.55 = 10,566.69 : x
  2. Step 2: Convert to fraction form
    18,521.88/25,559.55 = 10,566.69/x
  3. Step 3: Cross multiply
    18,521.88x = 25,559.55 × 10,566.69
  4. Step 4: Simplify right side
    18,521.88x = 270,079,841.39
  5. Step 5: Solve for x
    x = 270,079,841.39/18,521.88
  6. Step 6: Final answer
    x = 14,581.66

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Half scale
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Double scale
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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.