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Finding the Fourth Proportional to 11,465.52, 15,800.99 and 8,943.63

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Solution

The fourth proportional to 11,465.52, 15,800.99 and 8,943.63 is: 12,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.52 : 15,800.99 = 8,943.63 : x
  2. Step 2: Convert to fraction form
    11,465.52/15,800.99 = 8,943.63/x
  3. Step 3: Cross multiply
    11,465.52x = 15,800.99 × 8,943.63
  4. Step 4: Simplify right side
    11,465.52x = 141,318,247.70
  5. Step 5: Solve for x
    x = 141,318,247.70/11,465.52
  6. Step 6: Final answer
    x = 12,325.50

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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.