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Finding the Fourth Proportional to 18,277.56, 25,223.11 and 9,894.06

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Solution

The fourth proportional to 18,277.56, 25,223.11 and 9,894.06 is: 13,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277.56 : 25,223.11 = 9,894.06 : x
  2. Step 2: Convert to fraction form
    18,277.56/25,223.11 = 9,894.06/x
  3. Step 3: Cross multiply
    18,277.56x = 25,223.11 × 9,894.06
  4. Step 4: Simplify right side
    18,277.56x = 249,558,837.61
  5. Step 5: Solve for x
    x = 249,558,837.61/18,277.56
  6. Step 6: Final answer
    x = 13,653.84

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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.