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Finding the Fourth Proportional to 69,595.76, 96,036.87 and 40,916.59

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Solution

The fourth proportional to 69,595.76, 96,036.87 and 40,916.59 is: 56,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,595.76 : 96,036.87 = 40,916.59 : x
  2. Step 2: Convert to fraction form
    69,595.76/96,036.87 = 40,916.59/x
  3. Step 3: Cross multiply
    69,595.76x = 96,036.87 × 40,916.59
  4. Step 4: Simplify right side
    69,595.76x = 3,929,501,342.99
  5. Step 5: Solve for x
    x = 3,929,501,342.99/69,595.76
  6. Step 6: Final answer
    x = 56,461.79

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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.