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Finding the Fourth Proportional to 25,650.90, 38,478.54 and 9,009.48

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Solution

The fourth proportional to 25,650.90, 38,478.54 and 9,009.48 is: 13,514.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,650.90 : 38,478.54 = 9,009.48 : x
  2. Step 2: Convert to fraction form
    25,650.90/38,478.54 = 9,009.48/x
  3. Step 3: Cross multiply
    25,650.90x = 38,478.54 × 9,009.48
  4. Step 4: Simplify right side
    25,650.90x = 346,671,636.56
  5. Step 5: Solve for x
    x = 346,671,636.56/25,650.90
  6. Step 6: Final answer
    x = 13,514.99

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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.