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Finding the Fourth Proportional to 9,927.64, 14,893.76 and 2,907.76

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Solution

The fourth proportional to 9,927.64, 14,893.76 and 2,907.76 is: 4,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,927.64 : 14,893.76 = 2,907.76 : x
  2. Step 2: Convert to fraction form
    9,927.64/14,893.76 = 2,907.76/x
  3. Step 3: Cross multiply
    9,927.64x = 14,893.76 × 2,907.76
  4. Step 4: Simplify right side
    9,927.64x = 43,307,479.58
  5. Step 5: Solve for x
    x = 43,307,479.58/9,927.64
  6. Step 6: Final answer
    x = 4,362.31

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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.