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Finding the Fourth Proportional to 40,666.80, 60,950.99 and 18,457.82

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Solution

The fourth proportional to 40,666.80, 60,950.99 and 18,457.82 is: 27,664.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,666.80 : 60,950.99 = 18,457.82 : x
  2. Step 2: Convert to fraction form
    40,666.80/60,950.99 = 18,457.82/x
  3. Step 3: Cross multiply
    40,666.80x = 60,950.99 × 18,457.82
  4. Step 4: Simplify right side
    40,666.80x = 1,125,022,143.63
  5. Step 5: Solve for x
    x = 1,125,022,143.63/40,666.80
  6. Step 6: Final answer
    x = 27,664.39

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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.