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Finding the Fourth Proportional to 61,551.60, 84,887.64 and 49,611.12

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Solution

The fourth proportional to 61,551.60, 84,887.64 and 49,611.12 is: 68,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,551.60 : 84,887.64 = 49,611.12 : x
  2. Step 2: Convert to fraction form
    61,551.60/84,887.64 = 49,611.12/x
  3. Step 3: Cross multiply
    61,551.60x = 84,887.64 × 49,611.12
  4. Step 4: Simplify right side
    61,551.60x = 4,211,370,894.56
  5. Step 5: Solve for x
    x = 4,211,370,894.56/61,551.60
  6. Step 6: Final answer
    x = 68,420.17

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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.