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Finding the Fourth Proportional to 28,882.60, 43,259.10 and 28,234.60

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Solution

The fourth proportional to 28,882.60, 43,259.10 and 28,234.60 is: 42,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,882.60 : 43,259.10 = 28,234.60 : x
  2. Step 2: Convert to fraction form
    28,882.60/43,259.10 = 28,234.60/x
  3. Step 3: Cross multiply
    28,882.60x = 43,259.10 × 28,234.60
  4. Step 4: Simplify right side
    28,882.60x = 1,221,403,384.86
  5. Step 5: Solve for x
    x = 1,221,403,384.86/28,882.60
  6. Step 6: Final answer
    x = 42,288.55

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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.