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Finding the Fourth Proportional to 64,999.04, 89,611.94 and 51,614.60

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Solution

The fourth proportional to 64,999.04, 89,611.94 and 51,614.60 is: 71,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,999.04 : 89,611.94 = 51,614.60 : x
  2. Step 2: Convert to fraction form
    64,999.04/89,611.94 = 51,614.60/x
  3. Step 3: Cross multiply
    64,999.04x = 89,611.94 × 51,614.60
  4. Step 4: Simplify right side
    64,999.04x = 4,625,284,180.25
  5. Step 5: Solve for x
    x = 4,625,284,180.25/64,999.04
  6. Step 6: Final answer
    x = 71,159.27

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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.