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Finding the Fourth Proportional to 13,737.15, 20,605.71 and 4,970.01

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Solution

The fourth proportional to 13,737.15, 20,605.71 and 4,970.01 is: 7,455.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.15 : 20,605.71 = 4,970.01 : x
  2. Step 2: Convert to fraction form
    13,737.15/20,605.71 = 4,970.01/x
  3. Step 3: Cross multiply
    13,737.15x = 20,605.71 × 4,970.01
  4. Step 4: Simplify right side
    13,737.15x = 102,410,584.76
  5. Step 5: Solve for x
    x = 102,410,584.76/13,737.15
  6. Step 6: Final answer
    x = 7,455.01

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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.