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Finding the Fourth Proportional to 34,018.65, 46,948.32 and 18,912.51

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Solution

The fourth proportional to 34,018.65, 46,948.32 and 18,912.51 is: 26,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,018.65 : 46,948.32 = 18,912.51 : x
  2. Step 2: Convert to fraction form
    34,018.65/46,948.32 = 18,912.51/x
  3. Step 3: Cross multiply
    34,018.65x = 46,948.32 × 18,912.51
  4. Step 4: Simplify right side
    34,018.65x = 887,910,571.48
  5. Step 5: Solve for x
    x = 887,910,571.48/34,018.65
  6. Step 6: Final answer
    x = 26,100.70

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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.