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Finding the Fourth Proportional to 57,002.32, 85,503.48 and 15,449.32

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Solution

The fourth proportional to 57,002.32, 85,503.48 and 15,449.32 is: 23,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,002.32 : 85,503.48 = 15,449.32 : x
  2. Step 2: Convert to fraction form
    57,002.32/85,503.48 = 15,449.32/x
  3. Step 3: Cross multiply
    57,002.32x = 85,503.48 × 15,449.32
  4. Step 4: Simplify right side
    57,002.32x = 1,320,970,623.63
  5. Step 5: Solve for x
    x = 1,320,970,623.63/57,002.32
  6. Step 6: Final answer
    x = 23,173.98

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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.