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Finding the Fourth Proportional to 51,275.76, 76,926.02 and 19,255.10

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Solution

The fourth proportional to 51,275.76, 76,926.02 and 19,255.10 is: 28,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,275.76 : 76,926.02 = 19,255.10 : x
  2. Step 2: Convert to fraction form
    51,275.76/76,926.02 = 19,255.10/x
  3. Step 3: Cross multiply
    51,275.76x = 76,926.02 × 19,255.10
  4. Step 4: Simplify right side
    51,275.76x = 1,481,218,207.70
  5. Step 5: Solve for x
    x = 1,481,218,207.70/51,275.76
  6. Step 6: Final answer
    x = 28,887.30

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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.