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Finding the Fourth Proportional to 17,641.95, 26,465.09 and 7,783.71

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Solution

The fourth proportional to 17,641.95, 26,465.09 and 7,783.71 is: 11,676.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,641.95 : 26,465.09 = 7,783.71 : x
  2. Step 2: Convert to fraction form
    17,641.95/26,465.09 = 7,783.71/x
  3. Step 3: Cross multiply
    17,641.95x = 26,465.09 × 7,783.71
  4. Step 4: Simplify right side
    17,641.95x = 205,996,585.68
  5. Step 5: Solve for x
    x = 205,996,585.68/17,641.95
  6. Step 6: Final answer
    x = 11,676.52

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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.