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Finding the Fourth Proportional to 57,572, 79,449.60 and 32,421.92

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Solution

The fourth proportional to 57,572, 79,449.60 and 32,421.92 is: 44,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,572 : 79,449.60 = 32,421.92 : x
  2. Step 2: Convert to fraction form
    57,572/79,449.60 = 32,421.92/x
  3. Step 3: Cross multiply
    57,572x = 79,449.60 × 32,421.92
  4. Step 4: Simplify right side
    57,572x = 2,575,908,575.23
  5. Step 5: Solve for x
    x = 2,575,908,575.23/57,572
  6. Step 6: Final answer
    x = 44,742.38

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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.