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Finding the Fourth Proportional to 6,513.88, 8,981.76 and 4,626.04

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Solution

The fourth proportional to 6,513.88, 8,981.76 and 4,626.04 is: 6,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.88 : 8,981.76 = 4,626.04 : x
  2. Step 2: Convert to fraction form
    6,513.88/8,981.76 = 4,626.04/x
  3. Step 3: Cross multiply
    6,513.88x = 8,981.76 × 4,626.04
  4. Step 4: Simplify right side
    6,513.88x = 41,549,981.03
  5. Step 5: Solve for x
    x = 41,549,981.03/6,513.88
  6. Step 6: Final answer
    x = 6,378.68

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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.