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Finding the Fourth Proportional to 45,495.68, 68,230.56 and 28,830.56

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Solution

The fourth proportional to 45,495.68, 68,230.56 and 28,830.56 is: 43,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,495.68 : 68,230.56 = 28,830.56 : x
  2. Step 2: Convert to fraction form
    45,495.68/68,230.56 = 28,830.56/x
  3. Step 3: Cross multiply
    45,495.68x = 68,230.56 × 28,830.56
  4. Step 4: Simplify right side
    45,495.68x = 1,967,125,253.91
  5. Step 5: Solve for x
    x = 1,967,125,253.91/45,495.68
  6. Step 6: Final answer
    x = 43,237.63

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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.