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Finding the Fourth Proportional to 19,496.80, 29,223.60 and 10,133.20

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Solution

The fourth proportional to 19,496.80, 29,223.60 and 10,133.20 is: 15,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,496.80 : 29,223.60 = 10,133.20 : x
  2. Step 2: Convert to fraction form
    19,496.80/29,223.60 = 10,133.20/x
  3. Step 3: Cross multiply
    19,496.80x = 29,223.60 × 10,133.20
  4. Step 4: Simplify right side
    19,496.80x = 296,128,583.52
  5. Step 5: Solve for x
    x = 296,128,583.52/19,496.80
  6. Step 6: Final answer
    x = 15,188.57

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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.