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Finding the Fourth Proportional to 28,391.76, 42,368.90 and 24,936.30

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Solution

The fourth proportional to 28,391.76, 42,368.90 and 24,936.30 is: 37,212.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391.76 : 42,368.90 = 24,936.30 : x
  2. Step 2: Convert to fraction form
    28,391.76/42,368.90 = 24,936.30/x
  3. Step 3: Cross multiply
    28,391.76x = 42,368.90 × 24,936.30
  4. Step 4: Simplify right side
    28,391.76x = 1,056,523,476.39
  5. Step 5: Solve for x
    x = 1,056,523,476.39/28,391.76
  6. Step 6: Final answer
    x = 37,212.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.