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Finding the Fourth Proportional to 14,708.94, 20,297.88 and 7,994.34

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Solution

The fourth proportional to 14,708.94, 20,297.88 and 7,994.34 is: 11,031.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,708.94 : 20,297.88 = 7,994.34 : x
  2. Step 2: Convert to fraction form
    14,708.94/20,297.88 = 7,994.34/x
  3. Step 3: Cross multiply
    14,708.94x = 20,297.88 × 7,994.34
  4. Step 4: Simplify right side
    14,708.94x = 162,268,154.00
  5. Step 5: Solve for x
    x = 162,268,154.00/14,708.94
  6. Step 6: Final answer
    x = 11,031.94

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Similar ratio
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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.