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Finding the Fourth Proportional to 60,127.51, 82,939.81 and 39,709.76

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Solution

The fourth proportional to 60,127.51, 82,939.81 and 39,709.76 is: 54,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,127.51 : 82,939.81 = 39,709.76 : x
  2. Step 2: Convert to fraction form
    60,127.51/82,939.81 = 39,709.76/x
  3. Step 3: Cross multiply
    60,127.51x = 82,939.81 × 39,709.76
  4. Step 4: Simplify right side
    60,127.51x = 3,293,519,949.55
  5. Step 5: Solve for x
    x = 3,293,519,949.55/60,127.51
  6. Step 6: Final answer
    x = 54,775.59

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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.