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Finding the Fourth Proportional to 63,005.99, 86,944.70 and 36,145.98

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Solution

The fourth proportional to 63,005.99, 86,944.70 and 36,145.98 is: 49,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,005.99 : 86,944.70 = 36,145.98 : x
  2. Step 2: Convert to fraction form
    63,005.99/86,944.70 = 36,145.98/x
  3. Step 3: Cross multiply
    63,005.99x = 86,944.70 × 36,145.98
  4. Step 4: Simplify right side
    63,005.99x = 3,142,701,477.67
  5. Step 5: Solve for x
    x = 3,142,701,477.67/63,005.99
  6. Step 6: Final answer
    x = 49,879.41

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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.