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Finding the Fourth Proportional to 50,669.48, 76,009.08 and 13,230.20

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Solution

The fourth proportional to 50,669.48, 76,009.08 and 13,230.20 is: 19,846.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,669.48 : 76,009.08 = 13,230.20 : x
  2. Step 2: Convert to fraction form
    50,669.48/76,009.08 = 13,230.20/x
  3. Step 3: Cross multiply
    50,669.48x = 76,009.08 × 13,230.20
  4. Step 4: Simplify right side
    50,669.48x = 1,005,615,330.22
  5. Step 5: Solve for x
    x = 1,005,615,330.22/50,669.48
  6. Step 6: Final answer
    x = 19,846.57

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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.