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Finding the Fourth Proportional to 13,251.57, 19,834.08 and 9,740.65

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Solution

The fourth proportional to 13,251.57, 19,834.08 and 9,740.65 is: 14,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.57 : 19,834.08 = 9,740.65 : x
  2. Step 2: Convert to fraction form
    13,251.57/19,834.08 = 9,740.65/x
  3. Step 3: Cross multiply
    13,251.57x = 19,834.08 × 9,740.65
  4. Step 4: Simplify right side
    13,251.57x = 193,196,831.35
  5. Step 5: Solve for x
    x = 193,196,831.35/13,251.57
  6. Step 6: Final answer
    x = 14,579.17

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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.