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Finding the Fourth Proportional to 9,285.76, 13,928.02 and 4,356.48

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Solution

The fourth proportional to 9,285.76, 13,928.02 and 4,356.48 is: 6,534.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.76 : 13,928.02 = 4,356.48 : x
  2. Step 2: Convert to fraction form
    9,285.76/13,928.02 = 4,356.48/x
  3. Step 3: Cross multiply
    9,285.76x = 13,928.02 × 4,356.48
  4. Step 4: Simplify right side
    9,285.76x = 60,677,140.57
  5. Step 5: Solve for x
    x = 60,677,140.57/9,285.76
  6. Step 6: Final answer
    x = 6,534.43

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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.