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Finding the Fourth Proportional to 19,476.39, 29,227.53 and 7,164.39

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Solution

The fourth proportional to 19,476.39, 29,227.53 and 7,164.39 is: 10,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,476.39 : 29,227.53 = 7,164.39 : x
  2. Step 2: Convert to fraction form
    19,476.39/29,227.53 = 7,164.39/x
  3. Step 3: Cross multiply
    19,476.39x = 29,227.53 × 7,164.39
  4. Step 4: Simplify right side
    19,476.39x = 209,397,423.66
  5. Step 5: Solve for x
    x = 209,397,423.66/19,476.39
  6. Step 6: Final answer
    x = 10,751.35

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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.