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Finding the Fourth Proportional to 50,756.44, 76,132.90 and 13,316.22

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Solution

The fourth proportional to 50,756.44, 76,132.90 and 13,316.22 is: 19,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,756.44 : 76,132.90 = 13,316.22 : x
  2. Step 2: Convert to fraction form
    50,756.44/76,132.90 = 13,316.22/x
  3. Step 3: Cross multiply
    50,756.44x = 76,132.90 × 13,316.22
  4. Step 4: Simplify right side
    50,756.44x = 1,013,802,445.64
  5. Step 5: Solve for x
    x = 1,013,802,445.64/50,756.44
  6. Step 6: Final answer
    x = 19,973.87

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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.