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Finding the Fourth Proportional to 17,969.64, 26,943.16 and 5,485.51

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Solution

The fourth proportional to 17,969.64, 26,943.16 and 5,485.51 is: 8,224.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.64 : 26,943.16 = 5,485.51 : x
  2. Step 2: Convert to fraction form
    17,969.64/26,943.16 = 5,485.51/x
  3. Step 3: Cross multiply
    17,969.64x = 26,943.16 × 5,485.51
  4. Step 4: Simplify right side
    17,969.64x = 147,796,973.61
  5. Step 5: Solve for x
    x = 147,796,973.61/17,969.64
  6. Step 6: Final answer
    x = 8,224.82

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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.