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Finding the Fourth Proportional to 40,705.84, 61,047.48 and 11,124.82

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Solution

The fourth proportional to 40,705.84, 61,047.48 and 11,124.82 is: 16,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,705.84 : 61,047.48 = 11,124.82 : x
  2. Step 2: Convert to fraction form
    40,705.84/61,047.48 = 11,124.82/x
  3. Step 3: Cross multiply
    40,705.84x = 61,047.48 × 11,124.82
  4. Step 4: Simplify right side
    40,705.84x = 679,142,226.45
  5. Step 5: Solve for x
    x = 679,142,226.45/40,705.84
  6. Step 6: Final answer
    x = 16,684.15

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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.