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Finding the Fourth Proportional to 12,473.60, 18,703.20 and 4,683.20

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Solution

The fourth proportional to 12,473.60, 18,703.20 and 4,683.20 is: 7,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.60 : 18,703.20 = 4,683.20 : x
  2. Step 2: Convert to fraction form
    12,473.60/18,703.20 = 4,683.20/x
  3. Step 3: Cross multiply
    12,473.60x = 18,703.20 × 4,683.20
  4. Step 4: Simplify right side
    12,473.60x = 87,590,826.24
  5. Step 5: Solve for x
    x = 87,590,826.24/12,473.60
  6. Step 6: Final answer
    x = 7,022.10

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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.