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Finding the Fourth Proportional to 18,106.13, 24,986.03 and 10,039.74

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Solution

The fourth proportional to 18,106.13, 24,986.03 and 10,039.74 is: 13,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,106.13 : 24,986.03 = 10,039.74 : x
  2. Step 2: Convert to fraction form
    18,106.13/24,986.03 = 10,039.74/x
  3. Step 3: Cross multiply
    18,106.13x = 24,986.03 × 10,039.74
  4. Step 4: Simplify right side
    18,106.13x = 250,853,194.63
  5. Step 5: Solve for x
    x = 250,853,194.63/18,106.13
  6. Step 6: Final answer
    x = 13,854.60

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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.