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Finding the Fourth Proportional to 64,239.50, 88,649.44 and 35,558.55

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Solution

The fourth proportional to 64,239.50, 88,649.44 and 35,558.55 is: 49,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,239.50 : 88,649.44 = 35,558.55 : x
  2. Step 2: Convert to fraction form
    64,239.50/88,649.44 = 35,558.55/x
  3. Step 3: Cross multiply
    64,239.50x = 88,649.44 × 35,558.55
  4. Step 4: Simplify right side
    64,239.50x = 3,152,245,256.49
  5. Step 5: Solve for x
    x = 3,152,245,256.49/64,239.50
  6. Step 6: Final answer
    x = 49,070.20

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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.