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Finding the Fourth Proportional to 15,247.04, 20,848.79 and 15,247.04

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Solution

The fourth proportional to 15,247.04, 20,848.79 and 15,247.04 is: 20,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.04 : 20,848.79 = 15,247.04 : x
  2. Step 2: Convert to fraction form
    15,247.04/20,848.79 = 15,247.04/x
  3. Step 3: Cross multiply
    15,247.04x = 20,848.79 × 15,247.04
  4. Step 4: Simplify right side
    15,247.04x = 317,882,268.96
  5. Step 5: Solve for x
    x = 317,882,268.96/15,247.04
  6. Step 6: Final answer
    x = 20,848.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.