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Finding the Fourth Proportional to 69,090.75, 103,636.13 and 22,343.63

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Solution

The fourth proportional to 69,090.75, 103,636.13 and 22,343.63 is: 33,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,090.75 : 103,636.13 = 22,343.63 : x
  2. Step 2: Convert to fraction form
    69,090.75/103,636.13 = 22,343.63/x
  3. Step 3: Cross multiply
    69,090.75x = 103,636.13 × 22,343.63
  4. Step 4: Simplify right side
    69,090.75x = 2,315,607,343.35
  5. Step 5: Solve for x
    x = 2,315,607,343.35/69,090.75
  6. Step 6: Final answer
    x = 33,515.45

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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.