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Finding the Fourth Proportional to 6,316.62, 9,474.91 and 4,931.12

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Solution

The fourth proportional to 6,316.62, 9,474.91 and 4,931.12 is: 7,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,316.62 : 9,474.91 = 4,931.12 : x
  2. Step 2: Convert to fraction form
    6,316.62/9,474.91 = 4,931.12/x
  3. Step 3: Cross multiply
    6,316.62x = 9,474.91 × 4,931.12
  4. Step 4: Simplify right side
    6,316.62x = 46,721,903.27
  5. Step 5: Solve for x
    x = 46,721,903.27/6,316.62
  6. Step 6: Final answer
    x = 7,396.66

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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.