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Finding the Fourth Proportional to 35,059.92, 48,374.76 and 20,910

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Solution

The fourth proportional to 35,059.92, 48,374.76 and 20,910 is: 28,851.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,059.92 : 48,374.76 = 20,910 : x
  2. Step 2: Convert to fraction form
    35,059.92/48,374.76 = 20,910/x
  3. Step 3: Cross multiply
    35,059.92x = 48,374.76 × 20,910
  4. Step 4: Simplify right side
    35,059.92x = 1,011,516,231.60
  5. Step 5: Solve for x
    x = 1,011,516,231.60/35,059.92
  6. Step 6: Final answer
    x = 28,851.07

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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.