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Finding the Fourth Proportional to 13,458.10, 20,188.16 and 3,597.16

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Solution

The fourth proportional to 13,458.10, 20,188.16 and 3,597.16 is: 5,396.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.10 : 20,188.16 = 3,597.16 : x
  2. Step 2: Convert to fraction form
    13,458.10/20,188.16 = 3,597.16/x
  3. Step 3: Cross multiply
    13,458.10x = 20,188.16 × 3,597.16
  4. Step 4: Simplify right side
    13,458.10x = 72,620,041.63
  5. Step 5: Solve for x
    x = 72,620,041.63/13,458.10
  6. Step 6: Final answer
    x = 5,396.01

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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.