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Finding the Fourth Proportional to 19,041.24, 28,542.24 and 7,954.40

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Solution

The fourth proportional to 19,041.24, 28,542.24 and 7,954.40 is: 11,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,041.24 : 28,542.24 = 7,954.40 : x
  2. Step 2: Convert to fraction form
    19,041.24/28,542.24 = 7,954.40/x
  3. Step 3: Cross multiply
    19,041.24x = 28,542.24 × 7,954.40
  4. Step 4: Simplify right side
    19,041.24x = 227,036,393.86
  5. Step 5: Solve for x
    x = 227,036,393.86/19,041.24
  6. Step 6: Final answer
    x = 11,923.40

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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.