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Finding the Fourth Proportional to 32,595.10, 48,911.85 and 11,815.90

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Solution

The fourth proportional to 32,595.10, 48,911.85 and 11,815.90 is: 17,730.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,595.10 : 48,911.85 = 11,815.90 : x
  2. Step 2: Convert to fraction form
    32,595.10/48,911.85 = 11,815.90/x
  3. Step 3: Cross multiply
    32,595.10x = 48,911.85 × 11,815.90
  4. Step 4: Simplify right side
    32,595.10x = 577,937,528.42
  5. Step 5: Solve for x
    x = 577,937,528.42/32,595.10
  6. Step 6: Final answer
    x = 17,730.81

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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.