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Finding the Fourth Proportional to 46,839.88, 70,259.88 and 19,137.88

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Solution

The fourth proportional to 46,839.88, 70,259.88 and 19,137.88 is: 28,706.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,839.88 : 70,259.88 = 19,137.88 : x
  2. Step 2: Convert to fraction form
    46,839.88/70,259.88 = 19,137.88/x
  3. Step 3: Cross multiply
    46,839.88x = 70,259.88 × 19,137.88
  4. Step 4: Simplify right side
    46,839.88x = 1,344,625,152.25
  5. Step 5: Solve for x
    x = 1,344,625,152.25/46,839.88
  6. Step 6: Final answer
    x = 28,706.84

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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.