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Finding the Fourth Proportional to 64,172.66, 88,555.73 and 35,490.47

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Solution

The fourth proportional to 64,172.66, 88,555.73 and 35,490.47 is: 48,975.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,172.66 : 88,555.73 = 35,490.47 : x
  2. Step 2: Convert to fraction form
    64,172.66/88,555.73 = 35,490.47/x
  3. Step 3: Cross multiply
    64,172.66x = 88,555.73 × 35,490.47
  4. Step 4: Simplify right side
    64,172.66x = 3,142,883,858.66
  5. Step 5: Solve for x
    x = 3,142,883,858.66/64,172.66
  6. Step 6: Final answer
    x = 48,975.44

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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.