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Finding the Fourth Proportional to 31,283.44, 46,925.64 and 7,910.08

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Solution

The fourth proportional to 31,283.44, 46,925.64 and 7,910.08 is: 11,865.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,283.44 : 46,925.64 = 7,910.08 : x
  2. Step 2: Convert to fraction form
    31,283.44/46,925.64 = 7,910.08/x
  3. Step 3: Cross multiply
    31,283.44x = 46,925.64 × 7,910.08
  4. Step 4: Simplify right side
    31,283.44x = 371,185,566.45
  5. Step 5: Solve for x
    x = 371,185,566.45/31,283.44
  6. Step 6: Final answer
    x = 11,865.24

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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.