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Finding the Fourth Proportional to 14,751.81, 20,357.39 and 8,037.44

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Solution

The fourth proportional to 14,751.81, 20,357.39 and 8,037.44 is: 11,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,751.81 : 20,357.39 = 8,037.44 : x
  2. Step 2: Convert to fraction form
    14,751.81/20,357.39 = 8,037.44/x
  3. Step 3: Cross multiply
    14,751.81x = 20,357.39 × 8,037.44
  4. Step 4: Simplify right side
    14,751.81x = 163,621,158.71
  5. Step 5: Solve for x
    x = 163,621,158.71/14,751.81
  6. Step 6: Final answer
    x = 11,091.60

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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.