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Finding the Fourth Proportional to 12,465.33, 18,698.10 and 3,700.25

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Solution

The fourth proportional to 12,465.33, 18,698.10 and 3,700.25 is: 5,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.33 : 18,698.10 = 3,700.25 : x
  2. Step 2: Convert to fraction form
    12,465.33/18,698.10 = 3,700.25/x
  3. Step 3: Cross multiply
    12,465.33x = 18,698.10 × 3,700.25
  4. Step 4: Simplify right side
    12,465.33x = 69,187,551.03
  5. Step 5: Solve for x
    x = 69,187,551.03/12,465.33
  6. Step 6: Final answer
    x = 5,550.40

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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.