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Finding the Fourth Proportional to 27,980.97, 38,601.59 and 16,041.57

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Solution

The fourth proportional to 27,980.97, 38,601.59 and 16,041.57 is: 22,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.97 : 38,601.59 = 16,041.57 : x
  2. Step 2: Convert to fraction form
    27,980.97/38,601.59 = 16,041.57/x
  3. Step 3: Cross multiply
    27,980.97x = 38,601.59 × 16,041.57
  4. Step 4: Simplify right side
    27,980.97x = 619,230,108.10
  5. Step 5: Solve for x
    x = 619,230,108.10/27,980.97
  6. Step 6: Final answer
    x = 22,130.40

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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.