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Finding the Fourth Proportional to 34,039.76, 46,974.84 and 19,135.76

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Solution

The fourth proportional to 34,039.76, 46,974.84 and 19,135.76 is: 26,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,039.76 : 46,974.84 = 19,135.76 : x
  2. Step 2: Convert to fraction form
    34,039.76/46,974.84 = 19,135.76/x
  3. Step 3: Cross multiply
    34,039.76x = 46,974.84 × 19,135.76
  4. Step 4: Simplify right side
    34,039.76x = 898,899,264.28
  5. Step 5: Solve for x
    x = 898,899,264.28/34,039.76
  6. Step 6: Final answer
    x = 26,407.33

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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.