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Finding the Fourth Proportional to 19,295.73, 28,943.10 and 8,907.48

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Solution

The fourth proportional to 19,295.73, 28,943.10 and 8,907.48 is: 13,360.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,295.73 : 28,943.10 = 8,907.48 : x
  2. Step 2: Convert to fraction form
    19,295.73/28,943.10 = 8,907.48/x
  3. Step 3: Cross multiply
    19,295.73x = 28,943.10 × 8,907.48
  4. Step 4: Simplify right side
    19,295.73x = 257,810,084.39
  5. Step 5: Solve for x
    x = 257,810,084.39/19,295.73
  6. Step 6: Final answer
    x = 13,360.99

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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.