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Finding the Fourth Proportional to 18,237.75, 25,168.10 and 9,854.25

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Solution

The fourth proportional to 18,237.75, 25,168.10 and 9,854.25 is: 13,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.75 : 25,168.10 = 9,854.25 : x
  2. Step 2: Convert to fraction form
    18,237.75/25,168.10 = 9,854.25/x
  3. Step 3: Cross multiply
    18,237.75x = 25,168.10 × 9,854.25
  4. Step 4: Simplify right side
    18,237.75x = 248,012,700.15
  5. Step 5: Solve for x
    x = 248,012,700.15/18,237.75
  6. Step 6: Final answer
    x = 13,598.87

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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.