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Finding the Fourth Proportional to 48,327.36, 66,653.28 and 39,929.28

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Solution

The fourth proportional to 48,327.36, 66,653.28 and 39,929.28 is: 55,070.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,327.36 : 66,653.28 = 39,929.28 : x
  2. Step 2: Convert to fraction form
    48,327.36/66,653.28 = 39,929.28/x
  3. Step 3: Cross multiply
    48,327.36x = 66,653.28 × 39,929.28
  4. Step 4: Simplify right side
    48,327.36x = 2,661,417,480.04
  5. Step 5: Solve for x
    x = 2,661,417,480.04/48,327.36
  6. Step 6: Final answer
    x = 55,070.62

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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.