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Finding the Fourth Proportional to 19,422.93, 29,099.13 and 8,901.71

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Solution

The fourth proportional to 19,422.93, 29,099.13 and 8,901.71 is: 13,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.93 : 29,099.13 = 8,901.71 : x
  2. Step 2: Convert to fraction form
    19,422.93/29,099.13 = 8,901.71/x
  3. Step 3: Cross multiply
    19,422.93x = 29,099.13 × 8,901.71
  4. Step 4: Simplify right side
    19,422.93x = 259,032,016.51
  5. Step 5: Solve for x
    x = 259,032,016.51/19,422.93
  6. Step 6: Final answer
    x = 13,336.40

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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.