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Finding the Fourth Proportional to 64,455.45, 88,949.13 and 36,161.74

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Solution

The fourth proportional to 64,455.45, 88,949.13 and 36,161.74 is: 49,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,455.45 : 88,949.13 = 36,161.74 : x
  2. Step 2: Convert to fraction form
    64,455.45/88,949.13 = 36,161.74/x
  3. Step 3: Cross multiply
    64,455.45x = 88,949.13 × 36,161.74
  4. Step 4: Simplify right side
    64,455.45x = 3,216,555,312.29
  5. Step 5: Solve for x
    x = 3,216,555,312.29/64,455.45
  6. Step 6: Final answer
    x = 49,903.54

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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.