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Finding the Fourth Proportional to 28,242.92, 42,368.94 and 9,524.62

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Solution

The fourth proportional to 28,242.92, 42,368.94 and 9,524.62 is: 14,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.92 : 42,368.94 = 9,524.62 : x
  2. Step 2: Convert to fraction form
    28,242.92/42,368.94 = 9,524.62/x
  3. Step 3: Cross multiply
    28,242.92x = 42,368.94 × 9,524.62
  4. Step 4: Simplify right side
    28,242.92x = 403,548,053.30
  5. Step 5: Solve for x
    x = 403,548,053.30/28,242.92
  6. Step 6: Final answer
    x = 14,288.47

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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.