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Finding the Fourth Proportional to 7,777.62, 10,733.31 and 4,795.40

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Solution

The fourth proportional to 7,777.62, 10,733.31 and 4,795.40 is: 6,617.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.62 : 10,733.31 = 4,795.40 : x
  2. Step 2: Convert to fraction form
    7,777.62/10,733.31 = 4,795.40/x
  3. Step 3: Cross multiply
    7,777.62x = 10,733.31 × 4,795.40
  4. Step 4: Simplify right side
    7,777.62x = 51,470,541.61
  5. Step 5: Solve for x
    x = 51,470,541.61/7,777.62
  6. Step 6: Final answer
    x = 6,617.78

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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.