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Finding the Fourth Proportional to 15,086.76, 22,619.75 and 6,649.17

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Solution

The fourth proportional to 15,086.76, 22,619.75 and 6,649.17 is: 9,969.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,086.76 : 22,619.75 = 6,649.17 : x
  2. Step 2: Convert to fraction form
    15,086.76/22,619.75 = 6,649.17/x
  3. Step 3: Cross multiply
    15,086.76x = 22,619.75 × 6,649.17
  4. Step 4: Simplify right side
    15,086.76x = 150,402,529.86
  5. Step 5: Solve for x
    x = 150,402,529.86/15,086.76
  6. Step 6: Final answer
    x = 9,969.17

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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.