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Finding the Fourth Proportional to 22,863.66, 31,554.72 and 12,792.66

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Solution

The fourth proportional to 22,863.66, 31,554.72 and 12,792.66 is: 17,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,863.66 : 31,554.72 = 12,792.66 : x
  2. Step 2: Convert to fraction form
    22,863.66/31,554.72 = 12,792.66/x
  3. Step 3: Cross multiply
    22,863.66x = 31,554.72 × 12,792.66
  4. Step 4: Simplify right side
    22,863.66x = 403,668,804.36
  5. Step 5: Solve for x
    x = 403,668,804.36/22,863.66
  6. Step 6: Final answer
    x = 17,655.48

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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.