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Finding the Fourth Proportional to 19,019.52, 28,541.52 and 10,260.48

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Solution

The fourth proportional to 19,019.52, 28,541.52 and 10,260.48 is: 15,397.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.52 : 28,541.52 = 10,260.48 : x
  2. Step 2: Convert to fraction form
    19,019.52/28,541.52 = 10,260.48/x
  3. Step 3: Cross multiply
    19,019.52x = 28,541.52 × 10,260.48
  4. Step 4: Simplify right side
    19,019.52x = 292,849,695.13
  5. Step 5: Solve for x
    x = 292,849,695.13/19,019.52
  6. Step 6: Final answer
    x = 15,397.32

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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.