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Finding the Fourth Proportional to 5,369.52, 7,406.18 and 5,188.88

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Solution

The fourth proportional to 5,369.52, 7,406.18 and 5,188.88 is: 7,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.52 : 7,406.18 = 5,188.88 : x
  2. Step 2: Convert to fraction form
    5,369.52/7,406.18 = 5,188.88/x
  3. Step 3: Cross multiply
    5,369.52x = 7,406.18 × 5,188.88
  4. Step 4: Simplify right side
    5,369.52x = 38,429,779.28
  5. Step 5: Solve for x
    x = 38,429,779.28/5,369.52
  6. Step 6: Final answer
    x = 7,157.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.