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Finding the Fourth Proportional to 84,673.60, 127,009.14 and 20,632.48

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Solution

The fourth proportional to 84,673.60, 127,009.14 and 20,632.48 is: 30,948.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,673.60 : 127,009.14 = 20,632.48 : x
  2. Step 2: Convert to fraction form
    84,673.60/127,009.14 = 20,632.48/x
  3. Step 3: Cross multiply
    84,673.60x = 127,009.14 × 20,632.48
  4. Step 4: Simplify right side
    84,673.60x = 2,620,513,540.87
  5. Step 5: Solve for x
    x = 2,620,513,540.87/84,673.60
  6. Step 6: Final answer
    x = 30,948.41

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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.