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Finding the Fourth Proportional to 19,482, 26,885.70 and 11,098.56

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Solution

The fourth proportional to 19,482, 26,885.70 and 11,098.56 is: 15,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482 : 26,885.70 = 11,098.56 : x
  2. Step 2: Convert to fraction form
    19,482/26,885.70 = 11,098.56/x
  3. Step 3: Cross multiply
    19,482x = 26,885.70 × 11,098.56
  4. Step 4: Simplify right side
    19,482x = 298,392,554.59
  5. Step 5: Solve for x
    x = 298,392,554.59/19,482
  6. Step 6: Final answer
    x = 15,316.32

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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.