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Finding the Fourth Proportional to 57,475.63, 79,352.81 and 39,356.67

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Solution

The fourth proportional to 57,475.63, 79,352.81 and 39,356.67 is: 54,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,475.63 : 79,352.81 = 39,356.67 : x
  2. Step 2: Convert to fraction form
    57,475.63/79,352.81 = 39,356.67/x
  3. Step 3: Cross multiply
    57,475.63x = 79,352.81 × 39,356.67
  4. Step 4: Simplify right side
    57,475.63x = 3,123,062,356.74
  5. Step 5: Solve for x
    x = 3,123,062,356.74/57,475.63
  6. Step 6: Final answer
    x = 54,337.16

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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.