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Finding the Fourth Proportional to 19,241.40, 28,862.10 and 17,801.40

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Solution

The fourth proportional to 19,241.40, 28,862.10 and 17,801.40 is: 26,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,241.40 : 28,862.10 = 17,801.40 : x
  2. Step 2: Convert to fraction form
    19,241.40/28,862.10 = 17,801.40/x
  3. Step 3: Cross multiply
    19,241.40x = 28,862.10 × 17,801.40
  4. Step 4: Simplify right side
    19,241.40x = 513,785,786.94
  5. Step 5: Solve for x
    x = 513,785,786.94/19,241.40
  6. Step 6: Final answer
    x = 26,702.10

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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.