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Finding the Fourth Proportional to 14,069.54, 19,415.74 and 7,695.98

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Solution

The fourth proportional to 14,069.54, 19,415.74 and 7,695.98 is: 10,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.54 : 19,415.74 = 7,695.98 : x
  2. Step 2: Convert to fraction form
    14,069.54/19,415.74 = 7,695.98/x
  3. Step 3: Cross multiply
    14,069.54x = 19,415.74 × 7,695.98
  4. Step 4: Simplify right side
    14,069.54x = 149,423,146.73
  5. Step 5: Solve for x
    x = 149,423,146.73/14,069.54
  6. Step 6: Final answer
    x = 10,620.33

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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.