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Finding the Fourth Proportional to 51,323.80, 76,985.70 and 23,675.80

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Solution

The fourth proportional to 51,323.80, 76,985.70 and 23,675.80 is: 35,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,323.80 : 76,985.70 = 23,675.80 : x
  2. Step 2: Convert to fraction form
    51,323.80/76,985.70 = 23,675.80/x
  3. Step 3: Cross multiply
    51,323.80x = 76,985.70 × 23,675.80
  4. Step 4: Simplify right side
    51,323.80x = 1,822,698,036.06
  5. Step 5: Solve for x
    x = 1,822,698,036.06/51,323.80
  6. Step 6: Final answer
    x = 35,513.70

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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.