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Finding the Fourth Proportional to 60,813.80, 83,899.20 and 35,315.80

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Solution

The fourth proportional to 60,813.80, 83,899.20 and 35,315.80 is: 48,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,813.80 : 83,899.20 = 35,315.80 : x
  2. Step 2: Convert to fraction form
    60,813.80/83,899.20 = 35,315.80/x
  3. Step 3: Cross multiply
    60,813.80x = 83,899.20 × 35,315.80
  4. Step 4: Simplify right side
    60,813.80x = 2,962,967,367.36
  5. Step 5: Solve for x
    x = 2,962,967,367.36/60,813.80
  6. Step 6: Final answer
    x = 48,721.96

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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.