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Finding the Fourth Proportional to 14,326.70, 19,772.01 and 7,953.68

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Solution

The fourth proportional to 14,326.70, 19,772.01 and 7,953.68 is: 10,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,326.70 : 19,772.01 = 7,953.68 : x
  2. Step 2: Convert to fraction form
    14,326.70/19,772.01 = 7,953.68/x
  3. Step 3: Cross multiply
    14,326.70x = 19,772.01 × 7,953.68
  4. Step 4: Simplify right side
    14,326.70x = 157,260,141.64
  5. Step 5: Solve for x
    x = 157,260,141.64/14,326.70
  6. Step 6: Final answer
    x = 10,976.72

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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.