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Finding the Fourth Proportional to 14,232.75, 19,641.16 and 7,945.12

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Solution

The fourth proportional to 14,232.75, 19,641.16 and 7,945.12 is: 10,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,232.75 : 19,641.16 = 7,945.12 : x
  2. Step 2: Convert to fraction form
    14,232.75/19,641.16 = 7,945.12/x
  3. Step 3: Cross multiply
    14,232.75x = 19,641.16 × 7,945.12
  4. Step 4: Simplify right side
    14,232.75x = 156,051,373.14
  5. Step 5: Solve for x
    x = 156,051,373.14/14,232.75
  6. Step 6: Final answer
    x = 10,964.25

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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.