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Finding the Fourth Proportional to 45,338.99, 68,008.36 and 12,059.06

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Solution

The fourth proportional to 45,338.99, 68,008.36 and 12,059.06 is: 18,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,338.99 : 68,008.36 = 12,059.06 : x
  2. Step 2: Convert to fraction form
    45,338.99/68,008.36 = 12,059.06/x
  3. Step 3: Cross multiply
    45,338.99x = 68,008.36 × 12,059.06
  4. Step 4: Simplify right side
    45,338.99x = 820,116,523.55
  5. Step 5: Solve for x
    x = 820,116,523.55/45,338.99
  6. Step 6: Final answer
    x = 18,088.55

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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.