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Finding the Fourth Proportional to 61,005.72, 84,198.78 and 44,287.32

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Solution

The fourth proportional to 61,005.72, 84,198.78 and 44,287.32 is: 61,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,005.72 : 84,198.78 = 44,287.32 : x
  2. Step 2: Convert to fraction form
    61,005.72/84,198.78 = 44,287.32/x
  3. Step 3: Cross multiply
    61,005.72x = 84,198.78 × 44,287.32
  4. Step 4: Simplify right side
    61,005.72x = 3,728,938,313.47
  5. Step 5: Solve for x
    x = 3,728,938,313.47/61,005.72
  6. Step 6: Final answer
    x = 61,124.40

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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.