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Finding the Fourth Proportional to 18,399.84, 27,599.94 and 4,548.84

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Solution

The fourth proportional to 18,399.84, 27,599.94 and 4,548.84 is: 6,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.84 : 27,599.94 = 4,548.84 : x
  2. Step 2: Convert to fraction form
    18,399.84/27,599.94 = 4,548.84/x
  3. Step 3: Cross multiply
    18,399.84x = 27,599.94 × 4,548.84
  4. Step 4: Simplify right side
    18,399.84x = 125,547,711.07
  5. Step 5: Solve for x
    x = 125,547,711.07/18,399.84
  6. Step 6: Final answer
    x = 6,823.30

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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.