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Finding the Fourth Proportional to 59,928.66, 89,892.99 and 20,486.12

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Solution

The fourth proportional to 59,928.66, 89,892.99 and 20,486.12 is: 30,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,928.66 : 89,892.99 = 20,486.12 : x
  2. Step 2: Convert to fraction form
    59,928.66/89,892.99 = 20,486.12/x
  3. Step 3: Cross multiply
    59,928.66x = 89,892.99 × 20,486.12
  4. Step 4: Simplify right side
    59,928.66x = 1,841,558,130.83
  5. Step 5: Solve for x
    x = 1,841,558,130.83/59,928.66
  6. Step 6: Final answer
    x = 30,729.17

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.