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Finding the Fourth Proportional to 15,097.15, 20,834.99 and 8,724.93

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Solution

The fourth proportional to 15,097.15, 20,834.99 and 8,724.93 is: 12,040.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,097.15 : 20,834.99 = 8,724.93 : x
  2. Step 2: Convert to fraction form
    15,097.15/20,834.99 = 8,724.93/x
  3. Step 3: Cross multiply
    15,097.15x = 20,834.99 × 8,724.93
  4. Step 4: Simplify right side
    15,097.15x = 181,783,829.30
  5. Step 5: Solve for x
    x = 181,783,829.30/15,097.15
  6. Step 6: Final answer
    x = 12,040.94

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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.