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Finding the Fourth Proportional to 19,036.48, 28,542.48 and 7,950.88

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Solution

The fourth proportional to 19,036.48, 28,542.48 and 7,950.88 is: 11,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,036.48 : 28,542.48 = 7,950.88 : x
  2. Step 2: Convert to fraction form
    19,036.48/28,542.48 = 7,950.88/x
  3. Step 3: Cross multiply
    19,036.48x = 28,542.48 × 7,950.88
  4. Step 4: Simplify right side
    19,036.48x = 226,937,833.38
  5. Step 5: Solve for x
    x = 226,937,833.38/19,036.48
  6. Step 6: Final answer
    x = 11,921.21

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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.