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Finding the Fourth Proportional to 60,747.99, 83,803.64 and 39,519.51

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Solution

The fourth proportional to 60,747.99, 83,803.64 and 39,519.51 is: 54,518.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,747.99 : 83,803.64 = 39,519.51 : x
  2. Step 2: Convert to fraction form
    60,747.99/83,803.64 = 39,519.51/x
  3. Step 3: Cross multiply
    60,747.99x = 83,803.64 × 39,519.51
  4. Step 4: Simplify right side
    60,747.99x = 3,311,878,789.02
  5. Step 5: Solve for x
    x = 3,311,878,789.02/60,747.99
  6. Step 6: Final answer
    x = 54,518.33

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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.