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Finding the Fourth Proportional to 17,900.16, 26,822.64 and 9,581.28

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Solution

The fourth proportional to 17,900.16, 26,822.64 and 9,581.28 is: 14,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,900.16 : 26,822.64 = 9,581.28 : x
  2. Step 2: Convert to fraction form
    17,900.16/26,822.64 = 9,581.28/x
  3. Step 3: Cross multiply
    17,900.16x = 26,822.64 × 9,581.28
  4. Step 4: Simplify right side
    17,900.16x = 256,995,224.18
  5. Step 5: Solve for x
    x = 256,995,224.18/17,900.16
  6. Step 6: Final answer
    x = 14,357.15

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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.