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Finding the Fourth Proportional to 8,626.95, 11,898.63 and 6,503.13

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Solution

The fourth proportional to 8,626.95, 11,898.63 and 6,503.13 is: 8,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.95 : 11,898.63 = 6,503.13 : x
  2. Step 2: Convert to fraction form
    8,626.95/11,898.63 = 6,503.13/x
  3. Step 3: Cross multiply
    8,626.95x = 11,898.63 × 6,503.13
  4. Step 4: Simplify right side
    8,626.95x = 77,378,337.71
  5. Step 5: Solve for x
    x = 77,378,337.71/8,626.95
  6. Step 6: Final answer
    x = 8,969.37

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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.