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Finding the Fourth Proportional to 63,012.60, 94,539.02 and 18,639.59

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Solution

The fourth proportional to 63,012.60, 94,539.02 and 18,639.59 is: 27,965.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,012.60 : 94,539.02 = 18,639.59 : x
  2. Step 2: Convert to fraction form
    63,012.60/94,539.02 = 18,639.59/x
  3. Step 3: Cross multiply
    63,012.60x = 94,539.02 × 18,639.59
  4. Step 4: Simplify right side
    63,012.60x = 1,762,168,005.91
  5. Step 5: Solve for x
    x = 1,762,168,005.91/63,012.60
  6. Step 6: Final answer
    x = 27,965.33

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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.