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Finding the Fourth Proportional to 19,243.76, 28,842.42 and 9,368.24

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Solution

The fourth proportional to 19,243.76, 28,842.42 and 9,368.24 is: 14,041.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.76 : 28,842.42 = 9,368.24 : x
  2. Step 2: Convert to fraction form
    19,243.76/28,842.42 = 9,368.24/x
  3. Step 3: Cross multiply
    19,243.76x = 28,842.42 × 9,368.24
  4. Step 4: Simplify right side
    19,243.76x = 270,202,712.74
  5. Step 5: Solve for x
    x = 270,202,712.74/19,243.76
  6. Step 6: Final answer
    x = 14,041.06

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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.