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Finding the Fourth Proportional to 52,616.80, 78,921.60 and 17,077.60

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Solution

The fourth proportional to 52,616.80, 78,921.60 and 17,077.60 is: 25,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,616.80 : 78,921.60 = 17,077.60 : x
  2. Step 2: Convert to fraction form
    52,616.80/78,921.60 = 17,077.60/x
  3. Step 3: Cross multiply
    52,616.80x = 78,921.60 × 17,077.60
  4. Step 4: Simplify right side
    52,616.80x = 1,347,791,516.16
  5. Step 5: Solve for x
    x = 1,347,791,516.16/52,616.80
  6. Step 6: Final answer
    x = 25,615.23

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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.