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Finding the Fourth Proportional to 86,037.66, 129,051.90 and 26,866.56

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Solution

The fourth proportional to 86,037.66, 129,051.90 and 26,866.56 is: 40,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,037.66 : 129,051.90 = 26,866.56 : x
  2. Step 2: Convert to fraction form
    86,037.66/129,051.90 = 26,866.56/x
  3. Step 3: Cross multiply
    86,037.66x = 129,051.90 × 26,866.56
  4. Step 4: Simplify right side
    86,037.66x = 3,467,180,614.46
  5. Step 5: Solve for x
    x = 3,467,180,614.46/86,037.66
  6. Step 6: Final answer
    x = 40,298.41

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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.