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Finding the Fourth Proportional to 7,194.32, 9,931.66 and 4,805.70

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Solution

The fourth proportional to 7,194.32, 9,931.66 and 4,805.70 is: 6,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.32 : 9,931.66 = 4,805.70 : x
  2. Step 2: Convert to fraction form
    7,194.32/9,931.66 = 4,805.70/x
  3. Step 3: Cross multiply
    7,194.32x = 9,931.66 × 4,805.70
  4. Step 4: Simplify right side
    7,194.32x = 47,728,578.46
  5. Step 5: Solve for x
    x = 47,728,578.46/7,194.32
  6. Step 6: Final answer
    x = 6,634.20

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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.