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Finding the Fourth Proportional to 57,718.56, 79,642.80 and 36,526.80

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Solution

The fourth proportional to 57,718.56, 79,642.80 and 36,526.80 is: 50,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,718.56 : 79,642.80 = 36,526.80 : x
  2. Step 2: Convert to fraction form
    57,718.56/79,642.80 = 36,526.80/x
  3. Step 3: Cross multiply
    57,718.56x = 79,642.80 × 36,526.80
  4. Step 4: Simplify right side
    57,718.56x = 2,909,096,627.04
  5. Step 5: Solve for x
    x = 2,909,096,627.04/57,718.56
  6. Step 6: Final answer
    x = 50,401.41

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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.