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Finding the Fourth Proportional to 18,213.04, 25,133.04 and 10,255

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Solution

The fourth proportional to 18,213.04, 25,133.04 and 10,255 is: 14,151.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.04 : 25,133.04 = 10,255 : x
  2. Step 2: Convert to fraction form
    18,213.04/25,133.04 = 10,255/x
  3. Step 3: Cross multiply
    18,213.04x = 25,133.04 × 10,255
  4. Step 4: Simplify right side
    18,213.04x = 257,739,325.20
  5. Step 5: Solve for x
    x = 257,739,325.20/18,213.04
  6. Step 6: Final answer
    x = 14,151.36

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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.