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Finding the Fourth Proportional to 28,363.64, 42,542.22 and 7,588.76

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Solution

The fourth proportional to 28,363.64, 42,542.22 and 7,588.76 is: 11,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.64 : 42,542.22 = 7,588.76 : x
  2. Step 2: Convert to fraction form
    28,363.64/42,542.22 = 7,588.76/x
  3. Step 3: Cross multiply
    28,363.64x = 42,542.22 × 7,588.76
  4. Step 4: Simplify right side
    28,363.64x = 322,842,697.45
  5. Step 5: Solve for x
    x = 322,842,697.45/28,363.64
  6. Step 6: Final answer
    x = 11,382.27

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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.