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Finding the Fourth Proportional to 60,660.80, 83,710.64 and 33,803.20

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Solution

The fourth proportional to 60,660.80, 83,710.64 and 33,803.20 is: 46,647.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,660.80 : 83,710.64 = 33,803.20 : x
  2. Step 2: Convert to fraction form
    60,660.80/83,710.64 = 33,803.20/x
  3. Step 3: Cross multiply
    60,660.80x = 83,710.64 × 33,803.20
  4. Step 4: Simplify right side
    60,660.80x = 2,829,687,506.05
  5. Step 5: Solve for x
    x = 2,829,687,506.05/60,660.80
  6. Step 6: Final answer
    x = 46,647.71

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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.