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Finding the Fourth Proportional to 8,668.95, 11,963.19 and 4,690.08

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Solution

The fourth proportional to 8,668.95, 11,963.19 and 4,690.08 is: 6,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.95 : 11,963.19 = 4,690.08 : x
  2. Step 2: Convert to fraction form
    8,668.95/11,963.19 = 4,690.08/x
  3. Step 3: Cross multiply
    8,668.95x = 11,963.19 × 4,690.08
  4. Step 4: Simplify right side
    8,668.95x = 56,108,318.16
  5. Step 5: Solve for x
    x = 56,108,318.16/8,668.95
  6. Step 6: Final answer
    x = 6,472.33

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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.