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Finding the Fourth Proportional to 10,453.03, 14,425.13 and 5,672.87

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Solution

The fourth proportional to 10,453.03, 14,425.13 and 5,672.87 is: 7,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.03 : 14,425.13 = 5,672.87 : x
  2. Step 2: Convert to fraction form
    10,453.03/14,425.13 = 5,672.87/x
  3. Step 3: Cross multiply
    10,453.03x = 14,425.13 × 5,672.87
  4. Step 4: Simplify right side
    10,453.03x = 81,831,887.22
  5. Step 5: Solve for x
    x = 81,831,887.22/10,453.03
  6. Step 6: Final answer
    x = 7,828.53

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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.