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Finding the Fourth Proportional to 28,499.44, 42,749.88 and 13,503.04

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Solution

The fourth proportional to 28,499.44, 42,749.88 and 13,503.04 is: 20,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499.44 : 42,749.88 = 13,503.04 : x
  2. Step 2: Convert to fraction form
    28,499.44/42,749.88 = 13,503.04/x
  3. Step 3: Cross multiply
    28,499.44x = 42,749.88 × 13,503.04
  4. Step 4: Simplify right side
    28,499.44x = 577,253,339.64
  5. Step 5: Solve for x
    x = 577,253,339.64/28,499.44
  6. Step 6: Final answer
    x = 20,254.90

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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.