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Finding the Fourth Proportional to 14,434.56, 19,915.74 and 8,764.56

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Solution

The fourth proportional to 14,434.56, 19,915.74 and 8,764.56 is: 12,092.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,434.56 : 19,915.74 = 8,764.56 : x
  2. Step 2: Convert to fraction form
    14,434.56/19,915.74 = 8,764.56/x
  3. Step 3: Cross multiply
    14,434.56x = 19,915.74 × 8,764.56
  4. Step 4: Simplify right side
    14,434.56x = 174,552,698.17
  5. Step 5: Solve for x
    x = 174,552,698.17/14,434.56
  6. Step 6: Final answer
    x = 12,092.69

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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.