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Finding the Fourth Proportional to 28,613.25, 42,927.17 and 10,851.17

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Solution

The fourth proportional to 28,613.25, 42,927.17 and 10,851.17 is: 16,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.25 : 42,927.17 = 10,851.17 : x
  2. Step 2: Convert to fraction form
    28,613.25/42,927.17 = 10,851.17/x
  3. Step 3: Cross multiply
    28,613.25x = 42,927.17 × 10,851.17
  4. Step 4: Simplify right side
    28,613.25x = 465,809,750.40
  5. Step 5: Solve for x
    x = 465,809,750.40/28,613.25
  6. Step 6: Final answer
    x = 16,279.51

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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.