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Finding the Fourth Proportional to 57,575.76, 79,476.84 and 45,004.56

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Solution

The fourth proportional to 57,575.76, 79,476.84 and 45,004.56 is: 62,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,575.76 : 79,476.84 = 45,004.56 : x
  2. Step 2: Convert to fraction form
    57,575.76/79,476.84 = 45,004.56/x
  3. Step 3: Cross multiply
    57,575.76x = 79,476.84 × 45,004.56
  4. Step 4: Simplify right side
    57,575.76x = 3,576,820,214.39
  5. Step 5: Solve for x
    x = 3,576,820,214.39/57,575.76
  6. Step 6: Final answer
    x = 62,123.72

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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.