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Finding the Fourth Proportional to 64,959.48, 97,441.93 and 20,585.25

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Solution

The fourth proportional to 64,959.48, 97,441.93 and 20,585.25 is: 30,878.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959.48 : 97,441.93 = 20,585.25 : x
  2. Step 2: Convert to fraction form
    64,959.48/97,441.93 = 20,585.25/x
  3. Step 3: Cross multiply
    64,959.48x = 97,441.93 × 20,585.25
  4. Step 4: Simplify right side
    64,959.48x = 2,005,866,489.53
  5. Step 5: Solve for x
    x = 2,005,866,489.53/64,959.48
  6. Step 6: Final answer
    x = 30,878.73

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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.