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Finding the Fourth Proportional to 62,112.64, 85,715.64 and 33,818.50

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Solution

The fourth proportional to 62,112.64, 85,715.64 and 33,818.50 is: 46,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,112.64 : 85,715.64 = 33,818.50 : x
  2. Step 2: Convert to fraction form
    62,112.64/85,715.64 = 33,818.50/x
  3. Step 3: Cross multiply
    62,112.64x = 85,715.64 × 33,818.50
  4. Step 4: Simplify right side
    62,112.64x = 2,898,774,371.34
  5. Step 5: Solve for x
    x = 2,898,774,371.34/62,112.64
  6. Step 6: Final answer
    x = 46,669.64

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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.