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Finding the Fourth Proportional to 7,803.42, 10,771.83 and 4,659

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Solution

The fourth proportional to 7,803.42, 10,771.83 and 4,659 is: 6,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.42 : 10,771.83 = 4,659 : x
  2. Step 2: Convert to fraction form
    7,803.42/10,771.83 = 4,659/x
  3. Step 3: Cross multiply
    7,803.42x = 10,771.83 × 4,659
  4. Step 4: Simplify right side
    7,803.42x = 50,185,955.97
  5. Step 5: Solve for x
    x = 50,185,955.97/7,803.42
  6. Step 6: Final answer
    x = 6,431.28

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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.