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Finding the Fourth Proportional to 12,058.66, 17,981.06 and 11,254.33

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Solution

The fourth proportional to 12,058.66, 17,981.06 and 11,254.33 is: 16,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,058.66 : 17,981.06 = 11,254.33 : x
  2. Step 2: Convert to fraction form
    12,058.66/17,981.06 = 11,254.33/x
  3. Step 3: Cross multiply
    12,058.66x = 17,981.06 × 11,254.33
  4. Step 4: Simplify right side
    12,058.66x = 202,364,782.99
  5. Step 5: Solve for x
    x = 202,364,782.99/12,058.66
  6. Step 6: Final answer
    x = 16,781.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.