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Finding the Fourth Proportional to 14,789.76, 22,164.48 and 7,860.48

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Solution

The fourth proportional to 14,789.76, 22,164.48 and 7,860.48 is: 11,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.76 : 22,164.48 = 7,860.48 : x
  2. Step 2: Convert to fraction form
    14,789.76/22,164.48 = 7,860.48/x
  3. Step 3: Cross multiply
    14,789.76x = 22,164.48 × 7,860.48
  4. Step 4: Simplify right side
    14,789.76x = 174,223,451.75
  5. Step 5: Solve for x
    x = 174,223,451.75/14,789.76
  6. Step 6: Final answer
    x = 11,780.01

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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.