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Finding the Fourth Proportional to 6,670.84, 9,206.34 and 3,687.16

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Solution

The fourth proportional to 6,670.84, 9,206.34 and 3,687.16 is: 5,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,670.84 : 9,206.34 = 3,687.16 : x
  2. Step 2: Convert to fraction form
    6,670.84/9,206.34 = 3,687.16/x
  3. Step 3: Cross multiply
    6,670.84x = 9,206.34 × 3,687.16
  4. Step 4: Simplify right side
    6,670.84x = 33,945,248.59
  5. Step 5: Solve for x
    x = 33,945,248.59/6,670.84
  6. Step 6: Final answer
    x = 5,088.60

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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.