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Finding the Fourth Proportional to 64,298.40, 88,734.60 and 36,003.48

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Solution

The fourth proportional to 64,298.40, 88,734.60 and 36,003.48 is: 49,686.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,298.40 : 88,734.60 = 36,003.48 : x
  2. Step 2: Convert to fraction form
    64,298.40/88,734.60 = 36,003.48/x
  3. Step 3: Cross multiply
    64,298.40x = 88,734.60 × 36,003.48
  4. Step 4: Simplify right side
    64,298.40x = 3,194,754,396.41
  5. Step 5: Solve for x
    x = 3,194,754,396.41/64,298.40
  6. Step 6: Final answer
    x = 49,686.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.