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Finding the Fourth Proportional to 8,357.66, 11,533.58 and 4,631.66

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Solution

The fourth proportional to 8,357.66, 11,533.58 and 4,631.66 is: 6,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.66 : 11,533.58 = 4,631.66 : x
  2. Step 2: Convert to fraction form
    8,357.66/11,533.58 = 4,631.66/x
  3. Step 3: Cross multiply
    8,357.66x = 11,533.58 × 4,631.66
  4. Step 4: Simplify right side
    8,357.66x = 53,419,621.14
  5. Step 5: Solve for x
    x = 53,419,621.14/8,357.66
  6. Step 6: Final answer
    x = 6,391.70

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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.