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Finding the Fourth Proportional to 60,507.60, 90,763.96 and 18,954.96

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Solution

The fourth proportional to 60,507.60, 90,763.96 and 18,954.96 is: 28,433.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,507.60 : 90,763.96 = 18,954.96 : x
  2. Step 2: Convert to fraction form
    60,507.60/90,763.96 = 18,954.96/x
  3. Step 3: Cross multiply
    60,507.60x = 90,763.96 × 18,954.96
  4. Step 4: Simplify right side
    60,507.60x = 1,720,427,231.24
  5. Step 5: Solve for x
    x = 1,720,427,231.24/60,507.60
  6. Step 6: Final answer
    x = 28,433.24

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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.