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Finding the Fourth Proportional to 22,695.51, 33,977.52 and 18,955.74

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Solution

The fourth proportional to 22,695.51, 33,977.52 and 18,955.74 is: 28,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695.51 : 33,977.52 = 18,955.74 : x
  2. Step 2: Convert to fraction form
    22,695.51/33,977.52 = 18,955.74/x
  3. Step 3: Cross multiply
    22,695.51x = 33,977.52 × 18,955.74
  4. Step 4: Simplify right side
    22,695.51x = 644,069,034.96
  5. Step 5: Solve for x
    x = 644,069,034.96/22,695.51
  6. Step 6: Final answer
    x = 28,378.70

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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.