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Finding the Fourth Proportional to 18,775.71, 25,900.02 and 12,053.79

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Solution

The fourth proportional to 18,775.71, 25,900.02 and 12,053.79 is: 16,627.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.71 : 25,900.02 = 12,053.79 : x
  2. Step 2: Convert to fraction form
    18,775.71/25,900.02 = 12,053.79/x
  3. Step 3: Cross multiply
    18,775.71x = 25,900.02 × 12,053.79
  4. Step 4: Simplify right side
    18,775.71x = 312,193,402.08
  5. Step 5: Solve for x
    x = 312,193,402.08/18,775.71
  6. Step 6: Final answer
    x = 16,627.52

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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.