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Finding the Fourth Proportional to 55,097.60, 82,646.40 and 20,062.40

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Solution

The fourth proportional to 55,097.60, 82,646.40 and 20,062.40 is: 30,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,097.60 : 82,646.40 = 20,062.40 : x
  2. Step 2: Convert to fraction form
    55,097.60/82,646.40 = 20,062.40/x
  3. Step 3: Cross multiply
    55,097.60x = 82,646.40 × 20,062.40
  4. Step 4: Simplify right side
    55,097.60x = 1,658,085,135.36
  5. Step 5: Solve for x
    x = 1,658,085,135.36/55,097.60
  6. Step 6: Final answer
    x = 30,093.60

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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.