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Finding the Fourth Proportional to 18,829.80, 28,266.30 and 10,060.20

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Solution

The fourth proportional to 18,829.80, 28,266.30 and 10,060.20 is: 15,101.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.80 : 28,266.30 = 10,060.20 : x
  2. Step 2: Convert to fraction form
    18,829.80/28,266.30 = 10,060.20/x
  3. Step 3: Cross multiply
    18,829.80x = 28,266.30 × 10,060.20
  4. Step 4: Simplify right side
    18,829.80x = 284,364,631.26
  5. Step 5: Solve for x
    x = 284,364,631.26/18,829.80
  6. Step 6: Final answer
    x = 15,101.84

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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.