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Finding the Fourth Proportional to 56,913.92, 85,299.08 and 28,841.03

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Solution

The fourth proportional to 56,913.92, 85,299.08 and 28,841.03 is: 43,225.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,913.92 : 85,299.08 = 28,841.03 : x
  2. Step 2: Convert to fraction form
    56,913.92/85,299.08 = 28,841.03/x
  3. Step 3: Cross multiply
    56,913.92x = 85,299.08 × 28,841.03
  4. Step 4: Simplify right side
    56,913.92x = 2,460,113,610.60
  5. Step 5: Solve for x
    x = 2,460,113,610.60/56,913.92
  6. Step 6: Final answer
    x = 43,225.17

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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.