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Finding the Fourth Proportional to 7,061.53, 10,591.48 and 1,867.81

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Solution

The fourth proportional to 7,061.53, 10,591.48 and 1,867.81 is: 2,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,061.53 : 10,591.48 = 1,867.81 : x
  2. Step 2: Convert to fraction form
    7,061.53/10,591.48 = 1,867.81/x
  3. Step 3: Cross multiply
    7,061.53x = 10,591.48 × 1,867.81
  4. Step 4: Simplify right side
    7,061.53x = 19,782,872.26
  5. Step 5: Solve for x
    x = 19,782,872.26/7,061.53
  6. Step 6: Final answer
    x = 2,801.50

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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.