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Finding the Fourth Proportional to 11,120.16, 16,678.08 and 4,882.08

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Solution

The fourth proportional to 11,120.16, 16,678.08 and 4,882.08 is: 7,322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.16 : 16,678.08 = 4,882.08 : x
  2. Step 2: Convert to fraction form
    11,120.16/16,678.08 = 4,882.08/x
  3. Step 3: Cross multiply
    11,120.16x = 16,678.08 × 4,882.08
  4. Step 4: Simplify right side
    11,120.16x = 81,423,720.81
  5. Step 5: Solve for x
    x = 81,423,720.81/11,120.16
  6. Step 6: Final answer
    x = 7,322.17

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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.