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Finding the Fourth Proportional to 60,322.72, 90,484.08 and 18,761.44

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Solution

The fourth proportional to 60,322.72, 90,484.08 and 18,761.44 is: 28,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,322.72 : 90,484.08 = 18,761.44 : x
  2. Step 2: Convert to fraction form
    60,322.72/90,484.08 = 18,761.44/x
  3. Step 3: Cross multiply
    60,322.72x = 90,484.08 × 18,761.44
  4. Step 4: Simplify right side
    60,322.72x = 1,697,611,637.88
  5. Step 5: Solve for x
    x = 1,697,611,637.88/60,322.72
  6. Step 6: Final answer
    x = 28,142.16

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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.