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Finding the Fourth Proportional to 46,519.51, 69,774.07 and 12,788.11

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Solution

The fourth proportional to 46,519.51, 69,774.07 and 12,788.11 is: 19,180.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,519.51 : 69,774.07 = 12,788.11 : x
  2. Step 2: Convert to fraction form
    46,519.51/69,774.07 = 12,788.11/x
  3. Step 3: Cross multiply
    46,519.51x = 69,774.07 × 12,788.11
  4. Step 4: Simplify right side
    46,519.51x = 892,278,482.31
  5. Step 5: Solve for x
    x = 892,278,482.31/46,519.51
  6. Step 6: Final answer
    x = 19,180.74

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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.