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Finding the Fourth Proportional to 17,270.64, 25,881.24 and 7,407.28

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Solution

The fourth proportional to 17,270.64, 25,881.24 and 7,407.28 is: 11,100.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,270.64 : 25,881.24 = 7,407.28 : x
  2. Step 2: Convert to fraction form
    17,270.64/25,881.24 = 7,407.28/x
  3. Step 3: Cross multiply
    17,270.64x = 25,881.24 × 7,407.28
  4. Step 4: Simplify right side
    17,270.64x = 191,709,591.43
  5. Step 5: Solve for x
    x = 191,709,591.43/17,270.64
  6. Step 6: Final answer
    x = 11,100.32

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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.