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Finding the Fourth Proportional to 60,018.82, 90,084.74 and 30,457.87

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Solution

The fourth proportional to 60,018.82, 90,084.74 and 30,457.87 is: 45,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,018.82 : 90,084.74 = 30,457.87 : x
  2. Step 2: Convert to fraction form
    60,018.82/90,084.74 = 30,457.87/x
  3. Step 3: Cross multiply
    60,018.82x = 90,084.74 × 30,457.87
  4. Step 4: Simplify right side
    60,018.82x = 2,743,788,922.40
  5. Step 5: Solve for x
    x = 2,743,788,922.40/60,018.82
  6. Step 6: Final answer
    x = 45,715.48

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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.