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Finding the Fourth Proportional to 18,799.95, 28,200.76 and 10,473.65

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Solution

The fourth proportional to 18,799.95, 28,200.76 and 10,473.65 is: 15,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.95 : 28,200.76 = 10,473.65 : x
  2. Step 2: Convert to fraction form
    18,799.95/28,200.76 = 10,473.65/x
  3. Step 3: Cross multiply
    18,799.95x = 28,200.76 × 10,473.65
  4. Step 4: Simplify right side
    18,799.95x = 295,364,987.17
  5. Step 5: Solve for x
    x = 295,364,987.17/18,799.95
  6. Step 6: Final answer
    x = 15,710.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.