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Finding the Fourth Proportional to 28,625.70, 42,938.55 and 24,689.10

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Solution

The fourth proportional to 28,625.70, 42,938.55 and 24,689.10 is: 37,033.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.70 : 42,938.55 = 24,689.10 : x
  2. Step 2: Convert to fraction form
    28,625.70/42,938.55 = 24,689.10/x
  3. Step 3: Cross multiply
    28,625.70x = 42,938.55 × 24,689.10
  4. Step 4: Simplify right side
    28,625.70x = 1,060,114,154.81
  5. Step 5: Solve for x
    x = 1,060,114,154.81/28,625.70
  6. Step 6: Final answer
    x = 37,033.65

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Similar ratio
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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.