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Finding the Fourth Proportional to 57,440.57, 79,269.99 and 31,948.01

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Solution

The fourth proportional to 57,440.57, 79,269.99 and 31,948.01 is: 44,089.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,440.57 : 79,269.99 = 31,948.01 : x
  2. Step 2: Convert to fraction form
    57,440.57/79,269.99 = 31,948.01/x
  3. Step 3: Cross multiply
    57,440.57x = 79,269.99 × 31,948.01
  4. Step 4: Simplify right side
    57,440.57x = 2,532,518,036.87
  5. Step 5: Solve for x
    x = 2,532,518,036.87/57,440.57
  6. Step 6: Final answer
    x = 44,089.37

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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.