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Finding the Fourth Proportional to 44,497.60, 66,784.20 and 18,221.20

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Solution

The fourth proportional to 44,497.60, 66,784.20 and 18,221.20 is: 27,347.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,497.60 : 66,784.20 = 18,221.20 : x
  2. Step 2: Convert to fraction form
    44,497.60/66,784.20 = 18,221.20/x
  3. Step 3: Cross multiply
    44,497.60x = 66,784.20 × 18,221.20
  4. Step 4: Simplify right side
    44,497.60x = 1,216,888,265.04
  5. Step 5: Solve for x
    x = 1,216,888,265.04/44,497.60
  6. Step 6: Final answer
    x = 27,347.28

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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.