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Finding the Fourth Proportional to 15,737.16, 21,716.58 and 9,017.97

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Solution

The fourth proportional to 15,737.16, 21,716.58 and 9,017.97 is: 12,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,737.16 : 21,716.58 = 9,017.97 : x
  2. Step 2: Convert to fraction form
    15,737.16/21,716.58 = 9,017.97/x
  3. Step 3: Cross multiply
    15,737.16x = 21,716.58 × 9,017.97
  4. Step 4: Simplify right side
    15,737.16x = 195,839,466.94
  5. Step 5: Solve for x
    x = 195,839,466.94/15,737.16
  6. Step 6: Final answer
    x = 12,444.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.