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Finding the Fourth Proportional to 66,047.95, 98,902.77 and 36,432.87

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Solution

The fourth proportional to 66,047.95, 98,902.77 and 36,432.87 is: 54,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,047.95 : 98,902.77 = 36,432.87 : x
  2. Step 2: Convert to fraction form
    66,047.95/98,902.77 = 36,432.87/x
  3. Step 3: Cross multiply
    66,047.95x = 98,902.77 × 36,432.87
  4. Step 4: Simplify right side
    66,047.95x = 3,603,311,762.05
  5. Step 5: Solve for x
    x = 3,603,311,762.05/66,047.95
  6. Step 6: Final answer
    x = 54,556.00

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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.