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Finding the Fourth Proportional to 19,063.56, 26,307.78 and 10,680

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Solution

The fourth proportional to 19,063.56, 26,307.78 and 10,680 is: 14,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,063.56 : 26,307.78 = 10,680 : x
  2. Step 2: Convert to fraction form
    19,063.56/26,307.78 = 10,680/x
  3. Step 3: Cross multiply
    19,063.56x = 26,307.78 × 10,680
  4. Step 4: Simplify right side
    19,063.56x = 280,967,090.40
  5. Step 5: Solve for x
    x = 280,967,090.40/19,063.56
  6. Step 6: Final answer
    x = 14,738.44

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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.