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Finding the Fourth Proportional to 65,424.32, 98,152.90 and 25,968.40

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Solution

The fourth proportional to 65,424.32, 98,152.90 and 25,968.40 is: 38,959.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,424.32 : 98,152.90 = 25,968.40 : x
  2. Step 2: Convert to fraction form
    65,424.32/98,152.90 = 25,968.40/x
  3. Step 3: Cross multiply
    65,424.32x = 98,152.90 × 25,968.40
  4. Step 4: Simplify right side
    65,424.32x = 2,548,873,768.36
  5. Step 5: Solve for x
    x = 2,548,873,768.36/65,424.32
  6. Step 6: Final answer
    x = 38,959.12

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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.