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Finding the Fourth Proportional to 60,068.56, 90,112.62 and 18,515.56

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Solution

The fourth proportional to 60,068.56, 90,112.62 and 18,515.56 is: 27,776.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,068.56 : 90,112.62 = 18,515.56 : x
  2. Step 2: Convert to fraction form
    60,068.56/90,112.62 = 18,515.56/x
  3. Step 3: Cross multiply
    60,068.56x = 90,112.62 × 18,515.56
  4. Step 4: Simplify right side
    60,068.56x = 1,668,485,622.37
  5. Step 5: Solve for x
    x = 1,668,485,622.37/60,068.56
  6. Step 6: Final answer
    x = 27,776.35

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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.