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Finding the Fourth Proportional to 40,883.64, 61,239.06 and 30,913.08

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Solution

The fourth proportional to 40,883.64, 61,239.06 and 30,913.08 is: 46,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,883.64 : 61,239.06 = 30,913.08 : x
  2. Step 2: Convert to fraction form
    40,883.64/61,239.06 = 30,913.08/x
  3. Step 3: Cross multiply
    40,883.64x = 61,239.06 × 30,913.08
  4. Step 4: Simplify right side
    40,883.64x = 1,893,087,960.90
  5. Step 5: Solve for x
    x = 1,893,087,960.90/40,883.64
  6. Step 6: Final answer
    x = 46,304.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.