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Finding the Fourth Proportional to 62,263.50, 85,923.65 and 39,907.50

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Solution

The fourth proportional to 62,263.50, 85,923.65 and 39,907.50 is: 55,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,263.50 : 85,923.65 = 39,907.50 : x
  2. Step 2: Convert to fraction form
    62,263.50/85,923.65 = 39,907.50/x
  3. Step 3: Cross multiply
    62,263.50x = 85,923.65 × 39,907.50
  4. Step 4: Simplify right side
    62,263.50x = 3,428,998,062.38
  5. Step 5: Solve for x
    x = 3,428,998,062.38/62,263.50
  6. Step 6: Final answer
    x = 55,072.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.