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Finding the Fourth Proportional to 12,295.52, 18,439.68 and 4,897.52

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Solution

The fourth proportional to 12,295.52, 18,439.68 and 4,897.52 is: 7,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.52 : 18,439.68 = 4,897.52 : x
  2. Step 2: Convert to fraction form
    12,295.52/18,439.68 = 4,897.52/x
  3. Step 3: Cross multiply
    12,295.52x = 18,439.68 × 4,897.52
  4. Step 4: Simplify right side
    12,295.52x = 90,308,701.59
  5. Step 5: Solve for x
    x = 90,308,701.59/12,295.52
  6. Step 6: Final answer
    x = 7,344.85

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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.