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Finding the Fourth Proportional to 10,363.70, 15,583.95 and 8,674.10

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Solution

The fourth proportional to 10,363.70, 15,583.95 and 8,674.10 is: 13,043.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.70 : 15,583.95 = 8,674.10 : x
  2. Step 2: Convert to fraction form
    10,363.70/15,583.95 = 8,674.10/x
  3. Step 3: Cross multiply
    10,363.70x = 15,583.95 × 8,674.10
  4. Step 4: Simplify right side
    10,363.70x = 135,176,740.70
  5. Step 5: Solve for x
    x = 135,176,740.70/10,363.70
  6. Step 6: Final answer
    x = 13,043.29

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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.