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Finding the Fourth Proportional to 13,473.16, 20,211.04 and 5,160.16

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Solution

The fourth proportional to 13,473.16, 20,211.04 and 5,160.16 is: 7,740.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,473.16 : 20,211.04 = 5,160.16 : x
  2. Step 2: Convert to fraction form
    13,473.16/20,211.04 = 5,160.16/x
  3. Step 3: Cross multiply
    13,473.16x = 20,211.04 × 5,160.16
  4. Step 4: Simplify right side
    13,473.16x = 104,292,200.17
  5. Step 5: Solve for x
    x = 104,292,200.17/13,473.16
  6. Step 6: Final answer
    x = 7,740.74

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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.