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Finding the Fourth Proportional to 40,495.84, 60,743.76 and 21,750.08

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Solution

The fourth proportional to 40,495.84, 60,743.76 and 21,750.08 is: 32,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,495.84 : 60,743.76 = 21,750.08 : x
  2. Step 2: Convert to fraction form
    40,495.84/60,743.76 = 21,750.08/x
  3. Step 3: Cross multiply
    40,495.84x = 60,743.76 × 21,750.08
  4. Step 4: Simplify right side
    40,495.84x = 1,321,181,639.50
  5. Step 5: Solve for x
    x = 1,321,181,639.50/40,495.84
  6. Step 6: Final answer
    x = 32,625.12

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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.