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Finding the Fourth Proportional to 35,797.40, 53,720.40 and 20,002.40

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Solution

The fourth proportional to 35,797.40, 53,720.40 and 20,002.40 is: 30,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,797.40 : 53,720.40 = 20,002.40 : x
  2. Step 2: Convert to fraction form
    35,797.40/53,720.40 = 20,002.40/x
  3. Step 3: Cross multiply
    35,797.40x = 53,720.40 × 20,002.40
  4. Step 4: Simplify right side
    35,797.40x = 1,074,536,928.96
  5. Step 5: Solve for x
    x = 1,074,536,928.96/35,797.40
  6. Step 6: Final answer
    x = 30,017.18

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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.