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Finding the Fourth Proportional to 40,368.77, 60,562.89 and 12,666.77

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Solution

The fourth proportional to 40,368.77, 60,562.89 and 12,666.77 is: 19,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,368.77 : 60,562.89 = 12,666.77 : x
  2. Step 2: Convert to fraction form
    40,368.77/60,562.89 = 12,666.77/x
  3. Step 3: Cross multiply
    40,368.77x = 60,562.89 × 12,666.77
  4. Step 4: Simplify right side
    40,368.77x = 767,136,198.17
  5. Step 5: Solve for x
    x = 767,136,198.17/40,368.77
  6. Step 6: Final answer
    x = 19,003.21

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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.