Home / 46,018.78-69,028.27-12,738.94

Finding the Fourth Proportional to 46,018.78, 69,028.27 and 12,738.94

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Solution

The fourth proportional to 46,018.78, 69,028.27 and 12,738.94 is: 19,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,018.78 : 69,028.27 = 12,738.94 : x
  2. Step 2: Convert to fraction form
    46,018.78/69,028.27 = 12,738.94/x
  3. Step 3: Cross multiply
    46,018.78x = 69,028.27 × 12,738.94
  4. Step 4: Simplify right side
    46,018.78x = 879,346,989.83
  5. Step 5: Solve for x
    x = 879,346,989.83/46,018.78
  6. Step 6: Final answer
    x = 19,108.44

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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.