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Finding the Fourth Proportional to 19,194.96, 28,739.28 and 9,814.80

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Solution

The fourth proportional to 19,194.96, 28,739.28 and 9,814.80 is: 14,695.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,194.96 : 28,739.28 = 9,814.80 : x
  2. Step 2: Convert to fraction form
    19,194.96/28,739.28 = 9,814.80/x
  3. Step 3: Cross multiply
    19,194.96x = 28,739.28 × 9,814.80
  4. Step 4: Simplify right side
    19,194.96x = 282,070,285.34
  5. Step 5: Solve for x
    x = 282,070,285.34/19,194.96
  6. Step 6: Final answer
    x = 14,695.02

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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.