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Finding the Fourth Proportional to 63,688.55, 87,892.70 and 35,393.63

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Solution

The fourth proportional to 63,688.55, 87,892.70 and 35,393.63 is: 48,844.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,688.55 : 87,892.70 = 35,393.63 : x
  2. Step 2: Convert to fraction form
    63,688.55/87,892.70 = 35,393.63/x
  3. Step 3: Cross multiply
    63,688.55x = 87,892.70 × 35,393.63
  4. Step 4: Simplify right side
    63,688.55x = 3,110,841,087.07
  5. Step 5: Solve for x
    x = 3,110,841,087.07/63,688.55
  6. Step 6: Final answer
    x = 48,844.59

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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.