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Finding the Fourth Proportional to 57,758.72, 86,252.74 and 54,806.48

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Solution

The fourth proportional to 57,758.72, 86,252.74 and 54,806.48 is: 81,844.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,758.72 : 86,252.74 = 54,806.48 : x
  2. Step 2: Convert to fraction form
    57,758.72/86,252.74 = 54,806.48/x
  3. Step 3: Cross multiply
    57,758.72x = 86,252.74 × 54,806.48
  4. Step 4: Simplify right side
    57,758.72x = 4,727,209,069.76
  5. Step 5: Solve for x
    x = 4,727,209,069.76/57,758.72
  6. Step 6: Final answer
    x = 81,844.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.