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Finding the Fourth Proportional to 19,324.64, 28,940.52 and 10,537.76

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Solution

The fourth proportional to 19,324.64, 28,940.52 and 10,537.76 is: 15,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,324.64 : 28,940.52 = 10,537.76 : x
  2. Step 2: Convert to fraction form
    19,324.64/28,940.52 = 10,537.76/x
  3. Step 3: Cross multiply
    19,324.64x = 28,940.52 × 10,537.76
  4. Step 4: Simplify right side
    19,324.64x = 304,968,254.04
  5. Step 5: Solve for x
    x = 304,968,254.04/19,324.64
  6. Step 6: Final answer
    x = 15,781.32

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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.