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Finding the Fourth Proportional to 6,631.95, 9,153.57 and 5,193.46

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Solution

The fourth proportional to 6,631.95, 9,153.57 and 5,193.46 is: 7,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.95 : 9,153.57 = 5,193.46 : x
  2. Step 2: Convert to fraction form
    6,631.95/9,153.57 = 5,193.46/x
  3. Step 3: Cross multiply
    6,631.95x = 9,153.57 × 5,193.46
  4. Step 4: Simplify right side
    6,631.95x = 47,538,699.65
  5. Step 5: Solve for x
    x = 47,538,699.65/6,631.95
  6. Step 6: Final answer
    x = 7,168.13

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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.