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Finding the Fourth Proportional to 64,896.29, 89,560.99 and 38,028.99

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Solution

The fourth proportional to 64,896.29, 89,560.99 and 38,028.99 is: 52,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,896.29 : 89,560.99 = 38,028.99 : x
  2. Step 2: Convert to fraction form
    64,896.29/89,560.99 = 38,028.99/x
  3. Step 3: Cross multiply
    64,896.29x = 89,560.99 × 38,028.99
  4. Step 4: Simplify right side
    64,896.29x = 3,405,914,376.49
  5. Step 5: Solve for x
    x = 3,405,914,376.49/64,896.29
  6. Step 6: Final answer
    x = 52,482.42

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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.