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Finding the Fourth Proportional to 56,374.46, 77,619.72 and 47,858.94

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Solution

The fourth proportional to 56,374.46, 77,619.72 and 47,858.94 is: 65,895.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,374.46 : 77,619.72 = 47,858.94 : x
  2. Step 2: Convert to fraction form
    56,374.46/77,619.72 = 47,858.94/x
  3. Step 3: Cross multiply
    56,374.46x = 77,619.72 × 47,858.94
  4. Step 4: Simplify right side
    56,374.46x = 3,714,797,522.30
  5. Step 5: Solve for x
    x = 3,714,797,522.30/56,374.46
  6. Step 6: Final answer
    x = 65,895.04

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Why These Related Problems?

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