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Finding the Fourth Proportional to 15,063.68, 20,804.92 and 10,275.46

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Solution

The fourth proportional to 15,063.68, 20,804.92 and 10,275.46 is: 14,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,063.68 : 20,804.92 = 10,275.46 : x
  2. Step 2: Convert to fraction form
    15,063.68/20,804.92 = 10,275.46/x
  3. Step 3: Cross multiply
    15,063.68x = 20,804.92 × 10,275.46
  4. Step 4: Simplify right side
    15,063.68x = 213,780,123.26
  5. Step 5: Solve for x
    x = 213,780,123.26/15,063.68
  6. Step 6: Final answer
    x = 14,191.76

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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.