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Finding the Fourth Proportional to 61,847.84, 85,321.68 and 36,688.16

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Solution

The fourth proportional to 61,847.84, 85,321.68 and 36,688.16 is: 50,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,847.84 : 85,321.68 = 36,688.16 : x
  2. Step 2: Convert to fraction form
    61,847.84/85,321.68 = 36,688.16/x
  3. Step 3: Cross multiply
    61,847.84x = 85,321.68 × 36,688.16
  4. Step 4: Simplify right side
    61,847.84x = 3,130,295,447.31
  5. Step 5: Solve for x
    x = 3,130,295,447.31/61,847.84
  6. Step 6: Final answer
    x = 50,612.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.