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Finding the Fourth Proportional to 15,990.84, 24,017.88 and 9,678.48

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Solution

The fourth proportional to 15,990.84, 24,017.88 and 9,678.48 is: 14,536.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.84 : 24,017.88 = 9,678.48 : x
  2. Step 2: Convert to fraction form
    15,990.84/24,017.88 = 9,678.48/x
  3. Step 3: Cross multiply
    15,990.84x = 24,017.88 × 9,678.48
  4. Step 4: Simplify right side
    15,990.84x = 232,456,571.22
  5. Step 5: Solve for x
    x = 232,456,571.22/15,990.84
  6. Step 6: Final answer
    x = 14,536.86

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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.