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Finding the Fourth Proportional to 14,328.76, 19,773.36 and 7,954.97

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Solution

The fourth proportional to 14,328.76, 19,773.36 and 7,954.97 is: 10,977.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.76 : 19,773.36 = 7,954.97 : x
  2. Step 2: Convert to fraction form
    14,328.76/19,773.36 = 7,954.97/x
  3. Step 3: Cross multiply
    14,328.76x = 19,773.36 × 7,954.97
  4. Step 4: Simplify right side
    14,328.76x = 157,296,485.60
  5. Step 5: Solve for x
    x = 157,296,485.60/14,328.76
  6. Step 6: Final answer
    x = 10,977.68

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Half scale
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Double scale
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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.