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Finding the Fourth Proportional to 60,328.89, 90,494.55 and 28,742.58

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Solution

The fourth proportional to 60,328.89, 90,494.55 and 28,742.58 is: 43,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,328.89 : 90,494.55 = 28,742.58 : x
  2. Step 2: Convert to fraction form
    60,328.89/90,494.55 = 28,742.58/x
  3. Step 3: Cross multiply
    60,328.89x = 90,494.55 × 28,742.58
  4. Step 4: Simplify right side
    60,328.89x = 2,601,046,842.94
  5. Step 5: Solve for x
    x = 2,601,046,842.94/60,328.89
  6. Step 6: Final answer
    x = 43,114.45

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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.