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Finding the Fourth Proportional to 40,975.76, 61,424.76 and 14,666.96

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Solution

The fourth proportional to 40,975.76, 61,424.76 and 14,666.96 is: 21,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,975.76 : 61,424.76 = 14,666.96 : x
  2. Step 2: Convert to fraction form
    40,975.76/61,424.76 = 14,666.96/x
  3. Step 3: Cross multiply
    40,975.76x = 61,424.76 × 14,666.96
  4. Step 4: Simplify right side
    40,975.76x = 900,914,497.93
  5. Step 5: Solve for x
    x = 900,914,497.93/40,975.76
  6. Step 6: Final answer
    x = 21,986.52

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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.