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Finding the Fourth Proportional to 15,015.62, 20,727.62 and 9,052.40

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Solution

The fourth proportional to 15,015.62, 20,727.62 and 9,052.40 is: 12,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.62 : 20,727.62 = 9,052.40 : x
  2. Step 2: Convert to fraction form
    15,015.62/20,727.62 = 9,052.40/x
  3. Step 3: Cross multiply
    15,015.62x = 20,727.62 × 9,052.40
  4. Step 4: Simplify right side
    15,015.62x = 187,634,558.39
  5. Step 5: Solve for x
    x = 187,634,558.39/15,015.62
  6. Step 6: Final answer
    x = 12,495.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.