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Finding the Fourth Proportional to 14,063.52, 19,406.88 and 7,775.52

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Solution

The fourth proportional to 14,063.52, 19,406.88 and 7,775.52 is: 10,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,063.52 : 19,406.88 = 7,775.52 : x
  2. Step 2: Convert to fraction form
    14,063.52/19,406.88 = 7,775.52/x
  3. Step 3: Cross multiply
    14,063.52x = 19,406.88 × 7,775.52
  4. Step 4: Simplify right side
    14,063.52x = 150,898,583.58
  5. Step 5: Solve for x
    x = 150,898,583.58/14,063.52
  6. Step 6: Final answer
    x = 10,729.79

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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.