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Finding the Fourth Proportional to 64,409.92, 88,890.41 and 35,734.10

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Solution

The fourth proportional to 64,409.92, 88,890.41 and 35,734.10 is: 49,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,409.92 : 88,890.41 = 35,734.10 : x
  2. Step 2: Convert to fraction form
    64,409.92/88,890.41 = 35,734.10/x
  3. Step 3: Cross multiply
    64,409.92x = 88,890.41 × 35,734.10
  4. Step 4: Simplify right side
    64,409.92x = 3,176,418,444.86
  5. Step 5: Solve for x
    x = 3,176,418,444.86/64,409.92
  6. Step 6: Final answer
    x = 49,315.67

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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.