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Finding the Fourth Proportional to 13,735, 20,602.50 and 5,527

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Solution

The fourth proportional to 13,735, 20,602.50 and 5,527 is: 8,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735 : 20,602.50 = 5,527 : x
  2. Step 2: Convert to fraction form
    13,735/20,602.50 = 5,527/x
  3. Step 3: Cross multiply
    13,735x = 20,602.50 × 5,527
  4. Step 4: Simplify right side
    13,735x = 113,870,017.50
  5. Step 5: Solve for x
    x = 113,870,017.50/13,735
  6. Step 6: Final answer
    x = 8,290.50

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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.