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Finding the Fourth Proportional to 64,790.98, 89,414.33 and 36,110.64

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Solution

The fourth proportional to 64,790.98, 89,414.33 and 36,110.64 is: 49,834.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,790.98 : 89,414.33 = 36,110.64 : x
  2. Step 2: Convert to fraction form
    64,790.98/89,414.33 = 36,110.64/x
  3. Step 3: Cross multiply
    64,790.98x = 89,414.33 × 36,110.64
  4. Step 4: Simplify right side
    64,790.98x = 3,228,808,053.85
  5. Step 5: Solve for x
    x = 3,228,808,053.85/64,790.98
  6. Step 6: Final answer
    x = 49,834.22

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1.5x scale

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.