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Finding the Fourth Proportional to 26,586.88, 39,878.88 and 26,258.56

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Solution

The fourth proportional to 26,586.88, 39,878.88 and 26,258.56 is: 39,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,586.88 : 39,878.88 = 26,258.56 : x
  2. Step 2: Convert to fraction form
    26,586.88/39,878.88 = 26,258.56/x
  3. Step 3: Cross multiply
    26,586.88x = 39,878.88 × 26,258.56
  4. Step 4: Simplify right side
    26,586.88x = 1,047,161,963.21
  5. Step 5: Solve for x
    x = 1,047,161,963.21/26,586.88
  6. Step 6: Final answer
    x = 39,386.42

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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.