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Finding the Fourth Proportional to 6,389.69, 9,585.95 and 2,494.13

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Solution

The fourth proportional to 6,389.69, 9,585.95 and 2,494.13 is: 3,741.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.69 : 9,585.95 = 2,494.13 : x
  2. Step 2: Convert to fraction form
    6,389.69/9,585.95 = 2,494.13/x
  3. Step 3: Cross multiply
    6,389.69x = 9,585.95 × 2,494.13
  4. Step 4: Simplify right side
    6,389.69x = 23,908,545.07
  5. Step 5: Solve for x
    x = 23,908,545.07/6,389.69
  6. Step 6: Final answer
    x = 3,741.74

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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.