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Finding the Fourth Proportional to 66,113.34, 91,173.51 and 43,471.50

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Solution

The fourth proportional to 66,113.34, 91,173.51 and 43,471.50 is: 59,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,113.34 : 91,173.51 = 43,471.50 : x
  2. Step 2: Convert to fraction form
    66,113.34/91,173.51 = 43,471.50/x
  3. Step 3: Cross multiply
    66,113.34x = 91,173.51 × 43,471.50
  4. Step 4: Simplify right side
    66,113.34x = 3,963,449,239.97
  5. Step 5: Solve for x
    x = 3,963,449,239.97/66,113.34
  6. Step 6: Final answer
    x = 59,949.31

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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.