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Finding the Fourth Proportional to 14,307.73, 19,748.78 and 8,641.58

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Solution

The fourth proportional to 14,307.73, 19,748.78 and 8,641.58 is: 11,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,307.73 : 19,748.78 = 8,641.58 : x
  2. Step 2: Convert to fraction form
    14,307.73/19,748.78 = 8,641.58/x
  3. Step 3: Cross multiply
    14,307.73x = 19,748.78 × 8,641.58
  4. Step 4: Simplify right side
    14,307.73x = 170,660,552.73
  5. Step 5: Solve for x
    x = 170,660,552.73/14,307.73
  6. Step 6: Final answer
    x = 11,927.86

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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.