Home / 26,099.99-39,117.15-18,718.86

Finding the Fourth Proportional to 26,099.99, 39,117.15 and 18,718.86

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Solution

The fourth proportional to 26,099.99, 39,117.15 and 18,718.86 is: 28,054.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,099.99 : 39,117.15 = 18,718.86 : x
  2. Step 2: Convert to fraction form
    26,099.99/39,117.15 = 18,718.86/x
  3. Step 3: Cross multiply
    26,099.99x = 39,117.15 × 18,718.86
  4. Step 4: Simplify right side
    26,099.99x = 732,228,454.45
  5. Step 5: Solve for x
    x = 732,228,454.45/26,099.99
  6. Step 6: Final answer
    x = 28,054.75

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.