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Finding the Fourth Proportional to 27,911.96, 38,491.08 and 25,607

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Solution

The fourth proportional to 27,911.96, 38,491.08 and 25,607 is: 35,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.96 : 38,491.08 = 25,607 : x
  2. Step 2: Convert to fraction form
    27,911.96/38,491.08 = 25,607/x
  3. Step 3: Cross multiply
    27,911.96x = 38,491.08 × 25,607
  4. Step 4: Simplify right side
    27,911.96x = 985,641,085.56
  5. Step 5: Solve for x
    x = 985,641,085.56/27,911.96
  6. Step 6: Final answer
    x = 35,312.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.