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Finding the Fourth Proportional to 13,224.69, 18,250.48 and 7,256.76

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Solution

The fourth proportional to 13,224.69, 18,250.48 and 7,256.76 is: 10,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,224.69 : 18,250.48 = 7,256.76 : x
  2. Step 2: Convert to fraction form
    13,224.69/18,250.48 = 7,256.76/x
  3. Step 3: Cross multiply
    13,224.69x = 18,250.48 × 7,256.76
  4. Step 4: Simplify right side
    13,224.69x = 132,439,417.25
  5. Step 5: Solve for x
    x = 132,439,417.25/13,224.69
  6. Step 6: Final answer
    x = 10,014.56

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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.