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Finding the Fourth Proportional to 39,612.47, 54,665.21 and 22,845.47

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Solution

The fourth proportional to 39,612.47, 54,665.21 and 22,845.47 is: 31,526.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,612.47 : 54,665.21 = 22,845.47 : x
  2. Step 2: Convert to fraction form
    39,612.47/54,665.21 = 22,845.47/x
  3. Step 3: Cross multiply
    39,612.47x = 54,665.21 × 22,845.47
  4. Step 4: Simplify right side
    39,612.47x = 1,248,852,027.55
  5. Step 5: Solve for x
    x = 1,248,852,027.55/39,612.47
  6. Step 6: Final answer
    x = 31,526.74

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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.