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Finding the Fourth Proportional to 46,425.61, 69,687.62 and 28,907.77

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Solution

The fourth proportional to 46,425.61, 69,687.62 and 28,907.77 is: 43,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,425.61 : 69,687.62 = 28,907.77 : x
  2. Step 2: Convert to fraction form
    46,425.61/69,687.62 = 28,907.77/x
  3. Step 3: Cross multiply
    46,425.61x = 69,687.62 × 28,907.77
  4. Step 4: Simplify right side
    46,425.61x = 2,014,513,690.81
  5. Step 5: Solve for x
    x = 2,014,513,690.81/46,425.61
  6. Step 6: Final answer
    x = 43,392.29

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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.