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Finding the Fourth Proportional to 9,285.08, 13,928.22 and 4,359.47

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Solution

The fourth proportional to 9,285.08, 13,928.22 and 4,359.47 is: 6,539.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.08 : 13,928.22 = 4,359.47 : x
  2. Step 2: Convert to fraction form
    9,285.08/13,928.22 = 4,359.47/x
  3. Step 3: Cross multiply
    9,285.08x = 13,928.22 × 4,359.47
  4. Step 4: Simplify right side
    9,285.08x = 60,719,587.60
  5. Step 5: Solve for x
    x = 60,719,587.60/9,285.08
  6. Step 6: Final answer
    x = 6,539.48

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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.