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Finding the Fourth Proportional to 51,460.62, 71,010.74 and 28,798.44

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Solution

The fourth proportional to 51,460.62, 71,010.74 and 28,798.44 is: 39,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,460.62 : 71,010.74 = 28,798.44 : x
  2. Step 2: Convert to fraction form
    51,460.62/71,010.74 = 28,798.44/x
  3. Step 3: Cross multiply
    51,460.62x = 71,010.74 × 28,798.44
  4. Step 4: Simplify right side
    51,460.62x = 2,044,998,535.25
  5. Step 5: Solve for x
    x = 2,044,998,535.25/51,460.62
  6. Step 6: Final answer
    x = 39,739.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.