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Finding the Fourth Proportional to 14,335.59, 21,479.15 and 6,943.59

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Solution

The fourth proportional to 14,335.59, 21,479.15 and 6,943.59 is: 10,403.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,335.59 : 21,479.15 = 6,943.59 : x
  2. Step 2: Convert to fraction form
    14,335.59/21,479.15 = 6,943.59/x
  3. Step 3: Cross multiply
    14,335.59x = 21,479.15 × 6,943.59
  4. Step 4: Simplify right side
    14,335.59x = 149,142,376.43
  5. Step 5: Solve for x
    x = 149,142,376.43/14,335.59
  6. Step 6: Final answer
    x = 10,403.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.