Home / 53,665.51-80,510.21-17,643.60

Finding the Fourth Proportional to 53,665.51, 80,510.21 and 17,643.60

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Solution

The fourth proportional to 53,665.51, 80,510.21 and 17,643.60 is: 26,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,665.51 : 80,510.21 = 17,643.60 : x
  2. Step 2: Convert to fraction form
    53,665.51/80,510.21 = 17,643.60/x
  3. Step 3: Cross multiply
    53,665.51x = 80,510.21 × 17,643.60
  4. Step 4: Simplify right side
    53,665.51x = 1,420,489,941.16
  5. Step 5: Solve for x
    x = 1,420,489,941.16/53,665.51
  6. Step 6: Final answer
    x = 26,469.33

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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.