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Finding the Fourth Proportional to 9,834.60, 13,571.60 and 5,358.54

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Solution

The fourth proportional to 9,834.60, 13,571.60 and 5,358.54 is: 7,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,834.60 : 13,571.60 = 5,358.54 : x
  2. Step 2: Convert to fraction form
    9,834.60/13,571.60 = 5,358.54/x
  3. Step 3: Cross multiply
    9,834.60x = 13,571.60 × 5,358.54
  4. Step 4: Simplify right side
    9,834.60x = 72,723,961.46
  5. Step 5: Solve for x
    x = 72,723,961.46/9,834.60
  6. Step 6: Final answer
    x = 7,394.70

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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.