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Finding the Fourth Proportional to 18,478.25, 27,724.26 and 11,088.01

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Solution

The fourth proportional to 18,478.25, 27,724.26 and 11,088.01 is: 16,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.25 : 27,724.26 = 11,088.01 : x
  2. Step 2: Convert to fraction form
    18,478.25/27,724.26 = 11,088.01/x
  3. Step 3: Cross multiply
    18,478.25x = 27,724.26 × 11,088.01
  4. Step 4: Simplify right side
    18,478.25x = 307,406,678.06
  5. Step 5: Solve for x
    x = 307,406,678.06/18,478.25
  6. Step 6: Final answer
    x = 16,636.14

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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.