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Finding the Fourth Proportional to 9,168.42, 12,652.35 and 4,976.70

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Solution

The fourth proportional to 9,168.42, 12,652.35 and 4,976.70 is: 6,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.42 : 12,652.35 = 4,976.70 : x
  2. Step 2: Convert to fraction form
    9,168.42/12,652.35 = 4,976.70/x
  3. Step 3: Cross multiply
    9,168.42x = 12,652.35 × 4,976.70
  4. Step 4: Simplify right side
    9,168.42x = 62,966,950.25
  5. Step 5: Solve for x
    x = 62,966,950.25/9,168.42
  6. Step 6: Final answer
    x = 6,867.81

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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.