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Finding the Fourth Proportional to 100,521.37, 150,783.23 and 25,641.37

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Solution

The fourth proportional to 100,521.37, 150,783.23 and 25,641.37 is: 38,462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,521.37 : 150,783.23 = 25,641.37 : x
  2. Step 2: Convert to fraction form
    100,521.37/150,783.23 = 25,641.37/x
  3. Step 3: Cross multiply
    100,521.37x = 150,783.23 × 25,641.37
  4. Step 4: Simplify right side
    100,521.37x = 3,866,288,590.23
  5. Step 5: Solve for x
    x = 3,866,288,590.23/100,521.37
  6. Step 6: Final answer
    x = 38,462.35

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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.