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Finding the Fourth Proportional to 45,409.78, 62,665.50 and 25,537.78

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Solution

The fourth proportional to 45,409.78, 62,665.50 and 25,537.78 is: 35,242.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,409.78 : 62,665.50 = 25,537.78 : x
  2. Step 2: Convert to fraction form
    45,409.78/62,665.50 = 25,537.78/x
  3. Step 3: Cross multiply
    45,409.78x = 62,665.50 × 25,537.78
  4. Step 4: Simplify right side
    45,409.78x = 1,600,337,752.59
  5. Step 5: Solve for x
    x = 1,600,337,752.59/45,409.78
  6. Step 6: Final answer
    x = 35,242.14

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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.