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Finding the Fourth Proportional to 60,055.68, 90,033.20 and 28,447.68

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Solution

The fourth proportional to 60,055.68, 90,033.20 and 28,447.68 is: 42,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,055.68 : 90,033.20 = 28,447.68 : x
  2. Step 2: Convert to fraction form
    60,055.68/90,033.20 = 28,447.68/x
  3. Step 3: Cross multiply
    60,055.68x = 90,033.20 × 28,447.68
  4. Step 4: Simplify right side
    60,055.68x = 2,561,235,662.98
  5. Step 5: Solve for x
    x = 2,561,235,662.98/60,055.68
  6. Step 6: Final answer
    x = 42,647.68

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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.