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Finding the Fourth Proportional to 67,763.79, 93,529.64 and 45,103.68

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Solution

The fourth proportional to 67,763.79, 93,529.64 and 45,103.68 is: 62,253.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,763.79 : 93,529.64 = 45,103.68 : x
  2. Step 2: Convert to fraction form
    67,763.79/93,529.64 = 45,103.68/x
  3. Step 3: Cross multiply
    67,763.79x = 93,529.64 × 45,103.68
  4. Step 4: Simplify right side
    67,763.79x = 4,218,530,727.56
  5. Step 5: Solve for x
    x = 4,218,530,727.56/67,763.79
  6. Step 6: Final answer
    x = 62,253.46

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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.