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Finding the Fourth Proportional to 5,368.82, 7,405.22 and 5,188.19

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Solution

The fourth proportional to 5,368.82, 7,405.22 and 5,188.19 is: 7,156.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.82 : 7,405.22 = 5,188.19 : x
  2. Step 2: Convert to fraction form
    5,368.82/7,405.22 = 5,188.19/x
  3. Step 3: Cross multiply
    5,368.82x = 7,405.22 × 5,188.19
  4. Step 4: Simplify right side
    5,368.82x = 38,419,688.35
  5. Step 5: Solve for x
    x = 38,419,688.35/5,368.82
  6. Step 6: Final answer
    x = 7,156.08

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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.