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Finding the Fourth Proportional to 63,122.79, 87,109.39 and 34,828.48

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Solution

The fourth proportional to 63,122.79, 87,109.39 and 34,828.48 is: 48,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,122.79 : 87,109.39 = 34,828.48 : x
  2. Step 2: Convert to fraction form
    63,122.79/87,109.39 = 34,828.48/x
  3. Step 3: Cross multiply
    63,122.79x = 87,109.39 × 34,828.48
  4. Step 4: Simplify right side
    63,122.79x = 3,033,887,647.43
  5. Step 5: Solve for x
    x = 3,033,887,647.43/63,122.79
  6. Step 6: Final answer
    x = 48,063.27

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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.