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Finding the Fourth Proportional to 85,061.52, 127,606.32 and 25,883.64

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Solution

The fourth proportional to 85,061.52, 127,606.32 and 25,883.64 is: 38,829.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,061.52 : 127,606.32 = 25,883.64 : x
  2. Step 2: Convert to fraction form
    85,061.52/127,606.32 = 25,883.64/x
  3. Step 3: Cross multiply
    85,061.52x = 127,606.32 × 25,883.64
  4. Step 4: Simplify right side
    85,061.52x = 3,302,916,048.60
  5. Step 5: Solve for x
    x = 3,302,916,048.60/85,061.52
  6. Step 6: Final answer
    x = 38,829.73

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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.