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Finding the Fourth Proportional to 40,521.51, 55,919.75 and 22,616.51

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Solution

The fourth proportional to 40,521.51, 55,919.75 and 22,616.51 is: 31,210.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,521.51 : 55,919.75 = 22,616.51 : x
  2. Step 2: Convert to fraction form
    40,521.51/55,919.75 = 22,616.51/x
  3. Step 3: Cross multiply
    40,521.51x = 55,919.75 × 22,616.51
  4. Step 4: Simplify right side
    40,521.51x = 1,264,709,585.07
  5. Step 5: Solve for x
    x = 1,264,709,585.07/40,521.51
  6. Step 6: Final answer
    x = 31,210.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.