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Finding the Fourth Proportional to 30,943.44, 46,415.16 and 11,208.20

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Solution

The fourth proportional to 30,943.44, 46,415.16 and 11,208.20 is: 16,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.44 : 46,415.16 = 11,208.20 : x
  2. Step 2: Convert to fraction form
    30,943.44/46,415.16 = 11,208.20/x
  3. Step 3: Cross multiply
    30,943.44x = 46,415.16 × 11,208.20
  4. Step 4: Simplify right side
    30,943.44x = 520,230,164.24
  5. Step 5: Solve for x
    x = 520,230,164.24/30,943.44
  6. Step 6: Final answer
    x = 16,812.29

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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.