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Finding the Fourth Proportional to 5,710.95, 7,876.76 and 4,915.63

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Solution

The fourth proportional to 5,710.95, 7,876.76 and 4,915.63 is: 6,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,710.95 : 7,876.76 = 4,915.63 : x
  2. Step 2: Convert to fraction form
    5,710.95/7,876.76 = 4,915.63/x
  3. Step 3: Cross multiply
    5,710.95x = 7,876.76 × 4,915.63
  4. Step 4: Simplify right side
    5,710.95x = 38,719,230.36
  5. Step 5: Solve for x
    x = 38,719,230.36/5,710.95
  6. Step 6: Final answer
    x = 6,779.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.