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Finding the Fourth Proportional to 14,574.51, 20,111.26 and 8,910.59

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Solution

The fourth proportional to 14,574.51, 20,111.26 and 8,910.59 is: 12,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.51 : 20,111.26 = 8,910.59 : x
  2. Step 2: Convert to fraction form
    14,574.51/20,111.26 = 8,910.59/x
  3. Step 3: Cross multiply
    14,574.51x = 20,111.26 × 8,910.59
  4. Step 4: Simplify right side
    14,574.51x = 179,203,069.41
  5. Step 5: Solve for x
    x = 179,203,069.41/14,574.51
  6. Step 6: Final answer
    x = 12,295.65

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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.