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Finding the Fourth Proportional to 57,798.84, 86,767.38 and 34,436.28

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Solution

The fourth proportional to 57,798.84, 86,767.38 and 34,436.28 is: 51,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,798.84 : 86,767.38 = 34,436.28 : x
  2. Step 2: Convert to fraction form
    57,798.84/86,767.38 = 34,436.28/x
  3. Step 3: Cross multiply
    57,798.84x = 86,767.38 × 34,436.28
  4. Step 4: Simplify right side
    57,798.84x = 2,987,945,792.55
  5. Step 5: Solve for x
    x = 2,987,945,792.55/57,798.84
  6. Step 6: Final answer
    x = 51,695.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.