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Finding the Fourth Proportional to 18,277.84, 25,223.88 and 11,208.16

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Solution

The fourth proportional to 18,277.84, 25,223.88 and 11,208.16 is: 15,467.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277.84 : 25,223.88 = 11,208.16 : x
  2. Step 2: Convert to fraction form
    18,277.84/25,223.88 = 11,208.16/x
  3. Step 3: Cross multiply
    18,277.84x = 25,223.88 × 11,208.16
  4. Step 4: Simplify right side
    18,277.84x = 282,713,282.86
  5. Step 5: Solve for x
    x = 282,713,282.86/18,277.84
  6. Step 6: Final answer
    x = 15,467.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.