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Finding the Fourth Proportional to 5,407.82, 7,463.16 and 3,018.22

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Solution

The fourth proportional to 5,407.82, 7,463.16 and 3,018.22 is: 4,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.82 : 7,463.16 = 3,018.22 : x
  2. Step 2: Convert to fraction form
    5,407.82/7,463.16 = 3,018.22/x
  3. Step 3: Cross multiply
    5,407.82x = 7,463.16 × 3,018.22
  4. Step 4: Simplify right side
    5,407.82x = 22,525,440.12
  5. Step 5: Solve for x
    x = 22,525,440.12/5,407.82
  6. Step 6: Final answer
    x = 4,165.35

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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.