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Finding the Fourth Proportional to 60,965.47, 84,161.12 and 45,863.89

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Solution

The fourth proportional to 60,965.47, 84,161.12 and 45,863.89 is: 63,313.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,965.47 : 84,161.12 = 45,863.89 : x
  2. Step 2: Convert to fraction form
    60,965.47/84,161.12 = 45,863.89/x
  3. Step 3: Cross multiply
    60,965.47x = 84,161.12 × 45,863.89
  4. Step 4: Simplify right side
    60,965.47x = 3,859,956,349.96
  5. Step 5: Solve for x
    x = 3,859,956,349.96/60,965.47
  6. Step 6: Final answer
    x = 63,313.81

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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.