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Finding the Fourth Proportional to 64,651.18, 89,208.22 and 36,355.18

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Solution

The fourth proportional to 64,651.18, 89,208.22 and 36,355.18 is: 50,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,651.18 : 89,208.22 = 36,355.18 : x
  2. Step 2: Convert to fraction form
    64,651.18/89,208.22 = 36,355.18/x
  3. Step 3: Cross multiply
    64,651.18x = 89,208.22 × 36,355.18
  4. Step 4: Simplify right side
    64,651.18x = 3,243,180,895.58
  5. Step 5: Solve for x
    x = 3,243,180,895.58/64,651.18
  6. Step 6: Final answer
    x = 50,164.30

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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.