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Finding the Fourth Proportional to 19,903.34, 29,854.03 and 7,422.39

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Solution

The fourth proportional to 19,903.34, 29,854.03 and 7,422.39 is: 11,133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.34 : 29,854.03 = 7,422.39 : x
  2. Step 2: Convert to fraction form
    19,903.34/29,854.03 = 7,422.39/x
  3. Step 3: Cross multiply
    19,903.34x = 29,854.03 × 7,422.39
  4. Step 4: Simplify right side
    19,903.34x = 221,588,253.73
  5. Step 5: Solve for x
    x = 221,588,253.73/19,903.34
  6. Step 6: Final answer
    x = 11,133.22

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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.