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Finding the Fourth Proportional to 31,916.62, 44,051.62 and 19,170.40

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Solution

The fourth proportional to 31,916.62, 44,051.62 and 19,170.40 is: 26,459.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,916.62 : 44,051.62 = 19,170.40 : x
  2. Step 2: Convert to fraction form
    31,916.62/44,051.62 = 19,170.40/x
  3. Step 3: Cross multiply
    31,916.62x = 44,051.62 × 19,170.40
  4. Step 4: Simplify right side
    31,916.62x = 844,487,176.05
  5. Step 5: Solve for x
    x = 844,487,176.05/31,916.62
  6. Step 6: Final answer
    x = 26,459.17

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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.