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Finding the Fourth Proportional to 57,570.55, 79,433.53 and 32,420.05

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Solution

The fourth proportional to 57,570.55, 79,433.53 and 32,420.05 is: 44,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,570.55 : 79,433.53 = 32,420.05 : x
  2. Step 2: Convert to fraction form
    57,570.55/79,433.53 = 32,420.05/x
  3. Step 3: Cross multiply
    57,570.55x = 79,433.53 × 32,420.05
  4. Step 4: Simplify right side
    57,570.55x = 2,575,239,014.28
  5. Step 5: Solve for x
    x = 2,575,239,014.28/57,570.55
  6. Step 6: Final answer
    x = 44,731.88

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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.