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Finding the Fourth Proportional to 39,641.54, 54,705.74 and 22,648.01

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Solution

The fourth proportional to 39,641.54, 54,705.74 and 22,648.01 is: 31,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,641.54 : 54,705.74 = 22,648.01 : x
  2. Step 2: Convert to fraction form
    39,641.54/54,705.74 = 22,648.01/x
  3. Step 3: Cross multiply
    39,641.54x = 54,705.74 × 22,648.01
  4. Step 4: Simplify right side
    39,641.54x = 1,238,975,759.81
  5. Step 5: Solve for x
    x = 1,238,975,759.81/39,641.54
  6. Step 6: Final answer
    x = 31,254.48

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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.