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Finding the Fourth Proportional to 36,759.80, 55,139.70 and 10,465.40

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Solution

The fourth proportional to 36,759.80, 55,139.70 and 10,465.40 is: 15,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,759.80 : 55,139.70 = 10,465.40 : x
  2. Step 2: Convert to fraction form
    36,759.80/55,139.70 = 10,465.40/x
  3. Step 3: Cross multiply
    36,759.80x = 55,139.70 × 10,465.40
  4. Step 4: Simplify right side
    36,759.80x = 577,059,016.38
  5. Step 5: Solve for x
    x = 577,059,016.38/36,759.80
  6. Step 6: Final answer
    x = 15,698.10

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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.