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Finding the Fourth Proportional to 13,706.64, 20,532.56 and 6,300.95

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Solution

The fourth proportional to 13,706.64, 20,532.56 and 6,300.95 is: 9,438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706.64 : 20,532.56 = 6,300.95 : x
  2. Step 2: Convert to fraction form
    13,706.64/20,532.56 = 6,300.95/x
  3. Step 3: Cross multiply
    13,706.64x = 20,532.56 × 6,300.95
  4. Step 4: Simplify right side
    13,706.64x = 129,374,499.76
  5. Step 5: Solve for x
    x = 129,374,499.76/13,706.64
  6. Step 6: Final answer
    x = 9,438.82

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1.5x scale

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.