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Finding the Fourth Proportional to 64,507.20, 96,731.64 and 22,955.28

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Solution

The fourth proportional to 64,507.20, 96,731.64 and 22,955.28 is: 34,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,507.20 : 96,731.64 = 22,955.28 : x
  2. Step 2: Convert to fraction form
    64,507.20/96,731.64 = 22,955.28/x
  3. Step 3: Cross multiply
    64,507.20x = 96,731.64 × 22,955.28
  4. Step 4: Simplify right side
    64,507.20x = 2,220,501,881.06
  5. Step 5: Solve for x
    x = 2,220,501,881.06/64,507.20
  6. Step 6: Final answer
    x = 34,422.54

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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.