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Finding the Fourth Proportional to 19,169.60, 26,451.60 and 10,784.48

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Solution

The fourth proportional to 19,169.60, 26,451.60 and 10,784.48 is: 14,881.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.60 : 26,451.60 = 10,784.48 : x
  2. Step 2: Convert to fraction form
    19,169.60/26,451.60 = 10,784.48/x
  3. Step 3: Cross multiply
    19,169.60x = 26,451.60 × 10,784.48
  4. Step 4: Simplify right side
    19,169.60x = 285,266,751.17
  5. Step 5: Solve for x
    x = 285,266,751.17/19,169.60
  6. Step 6: Final answer
    x = 14,881.21

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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.