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Finding the Fourth Proportional to 26,975.40, 40,472.70 and 26,015.40

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Solution

The fourth proportional to 26,975.40, 40,472.70 and 26,015.40 is: 39,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,975.40 : 40,472.70 = 26,015.40 : x
  2. Step 2: Convert to fraction form
    26,975.40/40,472.70 = 26,015.40/x
  3. Step 3: Cross multiply
    26,975.40x = 40,472.70 × 26,015.40
  4. Step 4: Simplify right side
    26,975.40x = 1,052,913,479.58
  5. Step 5: Solve for x
    x = 1,052,913,479.58/26,975.40
  6. Step 6: Final answer
    x = 39,032.36

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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.