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Finding the Fourth Proportional to 60,748.99, 83,805.02 and 39,520.51

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Solution

The fourth proportional to 60,748.99, 83,805.02 and 39,520.51 is: 54,519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,748.99 : 83,805.02 = 39,520.51 : x
  2. Step 2: Convert to fraction form
    60,748.99/83,805.02 = 39,520.51/x
  3. Step 3: Cross multiply
    60,748.99x = 83,805.02 × 39,520.51
  4. Step 4: Simplify right side
    60,748.99x = 3,312,017,130.96
  5. Step 5: Solve for x
    x = 3,312,017,130.96/60,748.99
  6. Step 6: Final answer
    x = 54,519.71

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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.