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Finding the Fourth Proportional to 14,339.67, 19,788.08 and 7,966.68

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Solution

The fourth proportional to 14,339.67, 19,788.08 and 7,966.68 is: 10,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.67 : 19,788.08 = 7,966.68 : x
  2. Step 2: Convert to fraction form
    14,339.67/19,788.08 = 7,966.68/x
  3. Step 3: Cross multiply
    14,339.67x = 19,788.08 × 7,966.68
  4. Step 4: Simplify right side
    14,339.67x = 157,645,162.40
  5. Step 5: Solve for x
    x = 157,645,162.40/14,339.67
  6. Step 6: Final answer
    x = 10,993.64

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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.