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Finding the Fourth Proportional to 64,940.55, 97,246.80 and 51,818.55

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Solution

The fourth proportional to 64,940.55, 97,246.80 and 51,818.55 is: 77,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,940.55 : 97,246.80 = 51,818.55 : x
  2. Step 2: Convert to fraction form
    64,940.55/97,246.80 = 51,818.55/x
  3. Step 3: Cross multiply
    64,940.55x = 97,246.80 × 51,818.55
  4. Step 4: Simplify right side
    64,940.55x = 5,039,188,168.14
  5. Step 5: Solve for x
    x = 5,039,188,168.14/64,940.55
  6. Step 6: Final answer
    x = 77,596.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.