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Finding the Fourth Proportional to 64,340.92, 88,790.34 and 36,046

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Solution

The fourth proportional to 64,340.92, 88,790.34 and 36,046 is: 49,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,340.92 : 88,790.34 = 36,046 : x
  2. Step 2: Convert to fraction form
    64,340.92/88,790.34 = 36,046/x
  3. Step 3: Cross multiply
    64,340.92x = 88,790.34 × 36,046
  4. Step 4: Simplify right side
    64,340.92x = 3,200,536,595.64
  5. Step 5: Solve for x
    x = 3,200,536,595.64/64,340.92
  6. Step 6: Final answer
    x = 49,743.41

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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.