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Finding the Fourth Proportional to 61,643.50, 92,390.90 and 30,006.15

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Solution

The fourth proportional to 61,643.50, 92,390.90 and 30,006.15 is: 44,973.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,643.50 : 92,390.90 = 30,006.15 : x
  2. Step 2: Convert to fraction form
    61,643.50/92,390.90 = 30,006.15/x
  3. Step 3: Cross multiply
    61,643.50x = 92,390.90 × 30,006.15
  4. Step 4: Simplify right side
    61,643.50x = 2,772,295,355.49
  5. Step 5: Solve for x
    x = 2,772,295,355.49/61,643.50
  6. Step 6: Final answer
    x = 44,973.04

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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.