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Finding the Fourth Proportional to 9,370.57, 12,928.07 and 6,015.20

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Solution

The fourth proportional to 9,370.57, 12,928.07 and 6,015.20 is: 8,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.57 : 12,928.07 = 6,015.20 : x
  2. Step 2: Convert to fraction form
    9,370.57/12,928.07 = 6,015.20/x
  3. Step 3: Cross multiply
    9,370.57x = 12,928.07 × 6,015.20
  4. Step 4: Simplify right side
    9,370.57x = 77,764,877.06
  5. Step 5: Solve for x
    x = 77,764,877.06/9,370.57
  6. Step 6: Final answer
    x = 8,298.84

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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.