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Finding the Fourth Proportional to 85,072.93, 127,627.85 and 25,907.05

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Solution

The fourth proportional to 85,072.93, 127,627.85 and 25,907.05 is: 38,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.93 : 127,627.85 = 25,907.05 : x
  2. Step 2: Convert to fraction form
    85,072.93/127,627.85 = 25,907.05/x
  3. Step 3: Cross multiply
    85,072.93x = 127,627.85 × 25,907.05
  4. Step 4: Simplify right side
    85,072.93x = 3,306,460,961.81
  5. Step 5: Solve for x
    x = 3,306,460,961.81/85,072.93
  6. Step 6: Final answer
    x = 38,866.19

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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.