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Finding the Fourth Proportional to 64,649.16, 89,215.24 and 36,355.04

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Solution

The fourth proportional to 64,649.16, 89,215.24 and 36,355.04 is: 50,169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,649.16 : 89,215.24 = 36,355.04 : x
  2. Step 2: Convert to fraction form
    64,649.16/89,215.24 = 36,355.04/x
  3. Step 3: Cross multiply
    64,649.16x = 89,215.24 × 36,355.04
  4. Step 4: Simplify right side
    64,649.16x = 3,243,423,618.81
  5. Step 5: Solve for x
    x = 3,243,423,618.81/64,649.16
  6. Step 6: Final answer
    x = 50,169.62

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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.