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Finding the Fourth Proportional to 19,802.40, 27,324.72 and 11,841.72

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Solution

The fourth proportional to 19,802.40, 27,324.72 and 11,841.72 is: 16,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,802.40 : 27,324.72 = 11,841.72 : x
  2. Step 2: Convert to fraction form
    19,802.40/27,324.72 = 11,841.72/x
  3. Step 3: Cross multiply
    19,802.40x = 27,324.72 × 11,841.72
  4. Step 4: Simplify right side
    19,802.40x = 323,571,683.32
  5. Step 5: Solve for x
    x = 323,571,683.32/19,802.40
  6. Step 6: Final answer
    x = 16,340.02

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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.