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Finding the Fourth Proportional to 57,532.75, 79,354.29 and 38,402.88

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Solution

The fourth proportional to 57,532.75, 79,354.29 and 38,402.88 is: 52,968.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,532.75 : 79,354.29 = 38,402.88 : x
  2. Step 2: Convert to fraction form
    57,532.75/79,354.29 = 38,402.88/x
  3. Step 3: Cross multiply
    57,532.75x = 79,354.29 × 38,402.88
  4. Step 4: Simplify right side
    57,532.75x = 3,047,433,276.36
  5. Step 5: Solve for x
    x = 3,047,433,276.36/57,532.75
  6. Step 6: Final answer
    x = 52,968.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.