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Finding the Fourth Proportional to 25,220.63, 37,829.58 and 7,689.09

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Solution

The fourth proportional to 25,220.63, 37,829.58 and 7,689.09 is: 11,533.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,220.63 : 37,829.58 = 7,689.09 : x
  2. Step 2: Convert to fraction form
    25,220.63/37,829.58 = 7,689.09/x
  3. Step 3: Cross multiply
    25,220.63x = 37,829.58 × 7,689.09
  4. Step 4: Simplify right side
    25,220.63x = 290,875,201.56
  5. Step 5: Solve for x
    x = 290,875,201.56/25,220.63
  6. Step 6: Final answer
    x = 11,533.22

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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.