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Finding the Fourth Proportional to 19,259.58, 28,883.62 and 8,166.08

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Solution

The fourth proportional to 19,259.58, 28,883.62 and 8,166.08 is: 12,246.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,259.58 : 28,883.62 = 8,166.08 : x
  2. Step 2: Convert to fraction form
    19,259.58/28,883.62 = 8,166.08/x
  3. Step 3: Cross multiply
    19,259.58x = 28,883.62 × 8,166.08
  4. Step 4: Simplify right side
    19,259.58x = 235,865,951.61
  5. Step 5: Solve for x
    x = 235,865,951.61/19,259.58
  6. Step 6: Final answer
    x = 12,246.68

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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.