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Finding the Fourth Proportional to 40,681.94, 61,040.88 and 14,031.99

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Solution

The fourth proportional to 40,681.94, 61,040.88 and 14,031.99 is: 21,054.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,681.94 : 61,040.88 = 14,031.99 : x
  2. Step 2: Convert to fraction form
    40,681.94/61,040.88 = 14,031.99/x
  3. Step 3: Cross multiply
    40,681.94x = 61,040.88 × 14,031.99
  4. Step 4: Simplify right side
    40,681.94x = 856,525,017.75
  5. Step 5: Solve for x
    x = 856,525,017.75/40,681.94
  6. Step 6: Final answer
    x = 21,054.19

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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.