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Finding the Fourth Proportional to 13,482.01, 20,121.17 and 13,132.09

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Solution

The fourth proportional to 13,482.01, 20,121.17 and 13,132.09 is: 19,598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.01 : 20,121.17 = 13,132.09 : x
  2. Step 2: Convert to fraction form
    13,482.01/20,121.17 = 13,132.09/x
  3. Step 3: Cross multiply
    13,482.01x = 20,121.17 × 13,132.09
  4. Step 4: Simplify right side
    13,482.01x = 264,233,015.35
  5. Step 5: Solve for x
    x = 264,233,015.35/13,482.01
  6. Step 6: Final answer
    x = 19,598.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.