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Finding the Fourth Proportional to 52,666.80, 72,696.60 and 43,335.60

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Solution

The fourth proportional to 52,666.80, 72,696.60 and 43,335.60 is: 59,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,666.80 : 72,696.60 = 43,335.60 : x
  2. Step 2: Convert to fraction form
    52,666.80/72,696.60 = 43,335.60/x
  3. Step 3: Cross multiply
    52,666.80x = 72,696.60 × 43,335.60
  4. Step 4: Simplify right side
    52,666.80x = 3,150,350,778.96
  5. Step 5: Solve for x
    x = 3,150,350,778.96/52,666.80
  6. Step 6: Final answer
    x = 59,816.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.