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Finding the Fourth Proportional to 45,651.69, 68,479.55 and 17,561.70

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Solution

The fourth proportional to 45,651.69, 68,479.55 and 17,561.70 is: 26,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,651.69 : 68,479.55 = 17,561.70 : x
  2. Step 2: Convert to fraction form
    45,651.69/68,479.55 = 17,561.70/x
  3. Step 3: Cross multiply
    45,651.69x = 68,479.55 × 17,561.70
  4. Step 4: Simplify right side
    45,651.69x = 1,202,617,225.43
  5. Step 5: Solve for x
    x = 1,202,617,225.43/45,651.69
  6. Step 6: Final answer
    x = 26,343.32

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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.