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Finding the Fourth Proportional to 28,329.32, 42,493.98 and 7,552.82

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Solution

The fourth proportional to 28,329.32, 42,493.98 and 7,552.82 is: 11,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,329.32 : 42,493.98 = 7,552.82 : x
  2. Step 2: Convert to fraction form
    28,329.32/42,493.98 = 7,552.82/x
  3. Step 3: Cross multiply
    28,329.32x = 42,493.98 × 7,552.82
  4. Step 4: Simplify right side
    28,329.32x = 320,949,382.02
  5. Step 5: Solve for x
    x = 320,949,382.02/28,329.32
  6. Step 6: Final answer
    x = 11,329.23

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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.