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Finding the Fourth Proportional to 22,359.12, 33,538.64 and 5,719.16

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Solution

The fourth proportional to 22,359.12, 33,538.64 and 5,719.16 is: 8,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,359.12 : 33,538.64 = 5,719.16 : x
  2. Step 2: Convert to fraction form
    22,359.12/33,538.64 = 5,719.16/x
  3. Step 3: Cross multiply
    22,359.12x = 33,538.64 × 5,719.16
  4. Step 4: Simplify right side
    22,359.12x = 191,812,848.34
  5. Step 5: Solve for x
    x = 191,812,848.34/22,359.12
  6. Step 6: Final answer
    x = 8,578.73

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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.