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Finding the Fourth Proportional to 14,698.76, 20,284.44 and 7,984.51

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Solution

The fourth proportional to 14,698.76, 20,284.44 and 7,984.51 is: 11,018.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,698.76 : 20,284.44 = 7,984.51 : x
  2. Step 2: Convert to fraction form
    14,698.76/20,284.44 = 7,984.51/x
  3. Step 3: Cross multiply
    14,698.76x = 20,284.44 × 7,984.51
  4. Step 4: Simplify right side
    14,698.76x = 161,961,314.02
  5. Step 5: Solve for x
    x = 161,961,314.02/14,698.76
  6. Step 6: Final answer
    x = 11,018.71

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Double scale
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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.