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Finding the Fourth Proportional to 60,558.89, 90,852.71 and 20,580.53

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Solution

The fourth proportional to 60,558.89, 90,852.71 and 20,580.53 is: 30,875.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,558.89 : 90,852.71 = 20,580.53 : x
  2. Step 2: Convert to fraction form
    60,558.89/90,852.71 = 20,580.53/x
  3. Step 3: Cross multiply
    60,558.89x = 90,852.71 × 20,580.53
  4. Step 4: Simplify right side
    60,558.89x = 1,869,796,366.57
  5. Step 5: Solve for x
    x = 1,869,796,366.57/60,558.89
  6. Step 6: Final answer
    x = 30,875.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.