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Finding the Fourth Proportional to 28,130.90, 41,957.90 and 23,717.71

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Solution

The fourth proportional to 28,130.90, 41,957.90 and 23,717.71 is: 35,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.90 : 41,957.90 = 23,717.71 : x
  2. Step 2: Convert to fraction form
    28,130.90/41,957.90 = 23,717.71/x
  3. Step 3: Cross multiply
    28,130.90x = 41,957.90 × 23,717.71
  4. Step 4: Simplify right side
    28,130.90x = 995,145,327.21
  5. Step 5: Solve for x
    x = 995,145,327.21/28,130.90
  6. Step 6: Final answer
    x = 35,375.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.