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Finding the Fourth Proportional to 36,981.68, 55,455.68 and 10,680.16

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Solution

The fourth proportional to 36,981.68, 55,455.68 and 10,680.16 is: 16,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.68 : 55,455.68 = 10,680.16 : x
  2. Step 2: Convert to fraction form
    36,981.68/55,455.68 = 10,680.16/x
  3. Step 3: Cross multiply
    36,981.68x = 55,455.68 × 10,680.16
  4. Step 4: Simplify right side
    36,981.68x = 592,275,535.31
  5. Step 5: Solve for x
    x = 592,275,535.31/36,981.68
  6. Step 6: Final answer
    x = 16,015.38

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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.