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Finding the Fourth Proportional to 52,877.24, 72,979.04 and 31,663.32

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Solution

The fourth proportional to 52,877.24, 72,979.04 and 31,663.32 is: 43,700.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,877.24 : 72,979.04 = 31,663.32 : x
  2. Step 2: Convert to fraction form
    52,877.24/72,979.04 = 31,663.32/x
  3. Step 3: Cross multiply
    52,877.24x = 72,979.04 × 31,663.32
  4. Step 4: Simplify right side
    52,877.24x = 2,310,758,696.81
  5. Step 5: Solve for x
    x = 2,310,758,696.81/52,877.24
  6. Step 6: Final answer
    x = 43,700.44

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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.