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Finding the Fourth Proportional to 28,362.87, 42,548.93 and 9,644.58

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Solution

The fourth proportional to 28,362.87, 42,548.93 and 9,644.58 is: 14,468.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.87 : 42,548.93 = 9,644.58 : x
  2. Step 2: Convert to fraction form
    28,362.87/42,548.93 = 9,644.58/x
  3. Step 3: Cross multiply
    28,362.87x = 42,548.93 × 9,644.58
  4. Step 4: Simplify right side
    28,362.87x = 410,366,511.08
  5. Step 5: Solve for x
    x = 410,366,511.08/28,362.87
  6. Step 6: Final answer
    x = 14,468.44

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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.