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Finding the Fourth Proportional to 15,988.73, 23,989.99 and 8,584.53

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Solution

The fourth proportional to 15,988.73, 23,989.99 and 8,584.53 is: 12,880.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.73 : 23,989.99 = 8,584.53 : x
  2. Step 2: Convert to fraction form
    15,988.73/23,989.99 = 8,584.53/x
  3. Step 3: Cross multiply
    15,988.73x = 23,989.99 × 8,584.53
  4. Step 4: Simplify right side
    15,988.73x = 205,942,828.47
  5. Step 5: Solve for x
    x = 205,942,828.47/15,988.73
  6. Step 6: Final answer
    x = 12,880.50

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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.