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Finding the Fourth Proportional to 15,954.17, 22,017.74 and 13,296.96

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Solution

The fourth proportional to 15,954.17, 22,017.74 and 13,296.96 is: 18,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,954.17 : 22,017.74 = 13,296.96 : x
  2. Step 2: Convert to fraction form
    15,954.17/22,017.74 = 13,296.96/x
  3. Step 3: Cross multiply
    15,954.17x = 22,017.74 × 13,296.96
  4. Step 4: Simplify right side
    15,954.17x = 292,768,941.59
  5. Step 5: Solve for x
    x = 292,768,941.59/15,954.17
  6. Step 6: Final answer
    x = 18,350.63

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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.