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Finding the Fourth Proportional to 70,033.61, 96,647.37 and 39,818.86

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Solution

The fourth proportional to 70,033.61, 96,647.37 and 39,818.86 is: 54,950.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,033.61 : 96,647.37 = 39,818.86 : x
  2. Step 2: Convert to fraction form
    70,033.61/96,647.37 = 39,818.86/x
  3. Step 3: Cross multiply
    70,033.61x = 96,647.37 × 39,818.86
  4. Step 4: Simplify right side
    70,033.61x = 3,848,388,536.10
  5. Step 5: Solve for x
    x = 3,848,388,536.10/70,033.61
  6. Step 6: Final answer
    x = 54,950.59

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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.