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Finding the Fourth Proportional to 64,959.31, 97,451.25 and 20,597.23

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Solution

The fourth proportional to 64,959.31, 97,451.25 and 20,597.23 is: 30,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959.31 : 97,451.25 = 20,597.23 : x
  2. Step 2: Convert to fraction form
    64,959.31/97,451.25 = 20,597.23/x
  3. Step 3: Cross multiply
    64,959.31x = 97,451.25 × 20,597.23
  4. Step 4: Simplify right side
    64,959.31x = 2,007,225,810.04
  5. Step 5: Solve for x
    x = 2,007,225,810.04/64,959.31
  6. Step 6: Final answer
    x = 30,899.74

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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.