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Finding the Fourth Proportional to 13,166.51, 18,175.76 and 8,393.01

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Solution

The fourth proportional to 13,166.51, 18,175.76 and 8,393.01 is: 11,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.51 : 18,175.76 = 8,393.01 : x
  2. Step 2: Convert to fraction form
    13,166.51/18,175.76 = 8,393.01/x
  3. Step 3: Cross multiply
    13,166.51x = 18,175.76 × 8,393.01
  4. Step 4: Simplify right side
    13,166.51x = 152,549,335.44
  5. Step 5: Solve for x
    x = 152,549,335.44/13,166.51
  6. Step 6: Final answer
    x = 11,586.16

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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.