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Finding the Fourth Proportional to 13,094.93, 18,069.54 and 7,717.03

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Solution

The fourth proportional to 13,094.93, 18,069.54 and 7,717.03 is: 10,648.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094.93 : 18,069.54 = 7,717.03 : x
  2. Step 2: Convert to fraction form
    13,094.93/18,069.54 = 7,717.03/x
  3. Step 3: Cross multiply
    13,094.93x = 18,069.54 × 7,717.03
  4. Step 4: Simplify right side
    13,094.93x = 139,443,137.09
  5. Step 5: Solve for x
    x = 139,443,137.09/13,094.93
  6. Step 6: Final answer
    x = 10,648.63

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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.