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Finding the Fourth Proportional to 14,297.76, 19,740.52 and 8,928.36

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Solution

The fourth proportional to 14,297.76, 19,740.52 and 8,928.36 is: 12,327.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,297.76 : 19,740.52 = 8,928.36 : x
  2. Step 2: Convert to fraction form
    14,297.76/19,740.52 = 8,928.36/x
  3. Step 3: Cross multiply
    14,297.76x = 19,740.52 × 8,928.36
  4. Step 4: Simplify right side
    14,297.76x = 176,250,469.15
  5. Step 5: Solve for x
    x = 176,250,469.15/14,297.76
  6. Step 6: Final answer
    x = 12,327.14

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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.