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Finding the Fourth Proportional to 34,354.56, 51,531.84 and 18,763.68

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Solution

The fourth proportional to 34,354.56, 51,531.84 and 18,763.68 is: 28,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,354.56 : 51,531.84 = 18,763.68 : x
  2. Step 2: Convert to fraction form
    34,354.56/51,531.84 = 18,763.68/x
  3. Step 3: Cross multiply
    34,354.56x = 51,531.84 × 18,763.68
  4. Step 4: Simplify right side
    34,354.56x = 966,926,955.57
  5. Step 5: Solve for x
    x = 966,926,955.57/34,354.56
  6. Step 6: Final answer
    x = 28,145.52

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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.