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Finding the Fourth Proportional to 5,424.40, 8,124.45 and 5,424.40

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Solution

The fourth proportional to 5,424.40, 8,124.45 and 5,424.40 is: 8,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.40 : 8,124.45 = 5,424.40 : x
  2. Step 2: Convert to fraction form
    5,424.40/8,124.45 = 5,424.40/x
  3. Step 3: Cross multiply
    5,424.40x = 8,124.45 × 5,424.40
  4. Step 4: Simplify right side
    5,424.40x = 44,070,266.58
  5. Step 5: Solve for x
    x = 44,070,266.58/5,424.40
  6. Step 6: Final answer
    x = 8,124.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.