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Finding the Fourth Proportional to 7,200.63, 10,801.56 and 2,520.53

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Solution

The fourth proportional to 7,200.63, 10,801.56 and 2,520.53 is: 3,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.63 : 10,801.56 = 2,520.53 : x
  2. Step 2: Convert to fraction form
    7,200.63/10,801.56 = 2,520.53/x
  3. Step 3: Cross multiply
    7,200.63x = 10,801.56 × 2,520.53
  4. Step 4: Simplify right side
    7,200.63x = 27,225,656.03
  5. Step 5: Solve for x
    x = 27,225,656.03/7,200.63
  6. Step 6: Final answer
    x = 3,781.01

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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.