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Finding the Fourth Proportional to 35,902.40, 53,855.20 and 13,726.40

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Solution

The fourth proportional to 35,902.40, 53,855.20 and 13,726.40 is: 20,590.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,902.40 : 53,855.20 = 13,726.40 : x
  2. Step 2: Convert to fraction form
    35,902.40/53,855.20 = 13,726.40/x
  3. Step 3: Cross multiply
    35,902.40x = 53,855.20 × 13,726.40
  4. Step 4: Simplify right side
    35,902.40x = 739,238,017.28
  5. Step 5: Solve for x
    x = 739,238,017.28/35,902.40
  6. Step 6: Final answer
    x = 20,590.21

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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.