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Finding the Fourth Proportional to 12,258.75, 16,916.56 and 6,954.56

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Solution

The fourth proportional to 12,258.75, 16,916.56 and 6,954.56 is: 9,597.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.75 : 16,916.56 = 6,954.56 : x
  2. Step 2: Convert to fraction form
    12,258.75/16,916.56 = 6,954.56/x
  3. Step 3: Cross multiply
    12,258.75x = 16,916.56 × 6,954.56
  4. Step 4: Simplify right side
    12,258.75x = 117,647,231.51
  5. Step 5: Solve for x
    x = 117,647,231.51/12,258.75
  6. Step 6: Final answer
    x = 9,597.00

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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.