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Finding the Fourth Proportional to 15,957.96, 22,021.14 and 8,883.12

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Solution

The fourth proportional to 15,957.96, 22,021.14 and 8,883.12 is: 12,258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,957.96 : 22,021.14 = 8,883.12 : x
  2. Step 2: Convert to fraction form
    15,957.96/22,021.14 = 8,883.12/x
  3. Step 3: Cross multiply
    15,957.96x = 22,021.14 × 8,883.12
  4. Step 4: Simplify right side
    15,957.96x = 195,616,429.16
  5. Step 5: Solve for x
    x = 195,616,429.16/15,957.96
  6. Step 6: Final answer
    x = 12,258.24

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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.