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Finding the Fourth Proportional to 18,610.74, 25,682.40 and 10,652.22

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Solution

The fourth proportional to 18,610.74, 25,682.40 and 10,652.22 is: 14,699.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.74 : 25,682.40 = 10,652.22 : x
  2. Step 2: Convert to fraction form
    18,610.74/25,682.40 = 10,652.22/x
  3. Step 3: Cross multiply
    18,610.74x = 25,682.40 × 10,652.22
  4. Step 4: Simplify right side
    18,610.74x = 273,574,574.93
  5. Step 5: Solve for x
    x = 273,574,574.93/18,610.74
  6. Step 6: Final answer
    x = 14,699.82

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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.