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Finding the Fourth Proportional to 8,346.55, 11,518.21 and 4,518.19

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Solution

The fourth proportional to 8,346.55, 11,518.21 and 4,518.19 is: 6,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,346.55 : 11,518.21 = 4,518.19 : x
  2. Step 2: Convert to fraction form
    8,346.55/11,518.21 = 4,518.19/x
  3. Step 3: Cross multiply
    8,346.55x = 11,518.21 × 4,518.19
  4. Step 4: Simplify right side
    8,346.55x = 52,041,461.24
  5. Step 5: Solve for x
    x = 52,041,461.24/8,346.55
  6. Step 6: Final answer
    x = 6,235.09

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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.