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Finding the Fourth Proportional to 68,501.80, 102,752.70 and 33,423.40

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Solution

The fourth proportional to 68,501.80, 102,752.70 and 33,423.40 is: 50,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,501.80 : 102,752.70 = 33,423.40 : x
  2. Step 2: Convert to fraction form
    68,501.80/102,752.70 = 33,423.40/x
  3. Step 3: Cross multiply
    68,501.80x = 102,752.70 × 33,423.40
  4. Step 4: Simplify right side
    68,501.80x = 3,434,344,593.18
  5. Step 5: Solve for x
    x = 3,434,344,593.18/68,501.80
  6. Step 6: Final answer
    x = 50,135.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.