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Finding the Fourth Proportional to 18,607.94, 25,679.42 and 10,652.74

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Solution

The fourth proportional to 18,607.94, 25,679.42 and 10,652.74 is: 14,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.94 : 25,679.42 = 10,652.74 : x
  2. Step 2: Convert to fraction form
    18,607.94/25,679.42 = 10,652.74/x
  3. Step 3: Cross multiply
    18,607.94x = 25,679.42 × 10,652.74
  4. Step 4: Simplify right side
    18,607.94x = 273,556,184.61
  5. Step 5: Solve for x
    x = 273,556,184.61/18,607.94
  6. Step 6: Final answer
    x = 14,701.05

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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.