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Finding the Fourth Proportional to 62,917.50, 94,390.84 and 21,364.50

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Solution

The fourth proportional to 62,917.50, 94,390.84 and 21,364.50 is: 32,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,917.50 : 94,390.84 = 21,364.50 : x
  2. Step 2: Convert to fraction form
    62,917.50/94,390.84 = 21,364.50/x
  3. Step 3: Cross multiply
    62,917.50x = 94,390.84 × 21,364.50
  4. Step 4: Simplify right side
    62,917.50x = 2,016,613,101.18
  5. Step 5: Solve for x
    x = 2,016,613,101.18/62,917.50
  6. Step 6: Final answer
    x = 32,051.70

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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.