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Finding the Fourth Proportional to 6,885.95, 9,502.61 and 3,742.13

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Solution

The fourth proportional to 6,885.95, 9,502.61 and 3,742.13 is: 5,164.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.95 : 9,502.61 = 3,742.13 : x
  2. Step 2: Convert to fraction form
    6,885.95/9,502.61 = 3,742.13/x
  3. Step 3: Cross multiply
    6,885.95x = 9,502.61 × 3,742.13
  4. Step 4: Simplify right side
    6,885.95x = 35,559,935.74
  5. Step 5: Solve for x
    x = 35,559,935.74/6,885.95
  6. Step 6: Final answer
    x = 5,164.13

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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.