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Finding the Fourth Proportional to 28,165.34, 42,230.19 and 23,988.98

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Solution

The fourth proportional to 28,165.34, 42,230.19 and 23,988.98 is: 35,968.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.34 : 42,230.19 = 23,988.98 : x
  2. Step 2: Convert to fraction form
    28,165.34/42,230.19 = 23,988.98/x
  3. Step 3: Cross multiply
    28,165.34x = 42,230.19 × 23,988.98
  4. Step 4: Simplify right side
    28,165.34x = 1,013,059,183.31
  5. Step 5: Solve for x
    x = 1,013,059,183.31/28,165.34
  6. Step 6: Final answer
    x = 35,968.29

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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.