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Finding the Fourth Proportional to 9,995.76, 14,991.84 and 3,332.16

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Solution

The fourth proportional to 9,995.76, 14,991.84 and 3,332.16 is: 4,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.76 : 14,991.84 = 3,332.16 : x
  2. Step 2: Convert to fraction form
    9,995.76/14,991.84 = 3,332.16/x
  3. Step 3: Cross multiply
    9,995.76x = 14,991.84 × 3,332.16
  4. Step 4: Simplify right side
    9,995.76x = 49,955,209.57
  5. Step 5: Solve for x
    x = 49,955,209.57/9,995.76
  6. Step 6: Final answer
    x = 4,997.64

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.