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Finding the Fourth Proportional to 9,951.40, 14,927.10 and 4,767.40

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Solution

The fourth proportional to 9,951.40, 14,927.10 and 4,767.40 is: 7,151.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,951.40 : 14,927.10 = 4,767.40 : x
  2. Step 2: Convert to fraction form
    9,951.40/14,927.10 = 4,767.40/x
  3. Step 3: Cross multiply
    9,951.40x = 14,927.10 × 4,767.40
  4. Step 4: Simplify right side
    9,951.40x = 71,163,456.54
  5. Step 5: Solve for x
    x = 71,163,456.54/9,951.40
  6. Step 6: Final answer
    x = 7,151.10

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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.