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Finding the Fourth Proportional to 19,523.71, 29,266.08 and 7,661.26

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Solution

The fourth proportional to 19,523.71, 29,266.08 and 7,661.26 is: 11,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,523.71 : 29,266.08 = 7,661.26 : x
  2. Step 2: Convert to fraction form
    19,523.71/29,266.08 = 7,661.26/x
  3. Step 3: Cross multiply
    19,523.71x = 29,266.08 × 7,661.26
  4. Step 4: Simplify right side
    19,523.71x = 224,215,048.06
  5. Step 5: Solve for x
    x = 224,215,048.06/19,523.71
  6. Step 6: Final answer
    x = 11,484.24

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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.