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Finding the Fourth Proportional to 61,913.76, 85,453.44 and 35,056.32

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Solution

The fourth proportional to 61,913.76, 85,453.44 and 35,056.32 is: 48,384.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,913.76 : 85,453.44 = 35,056.32 : x
  2. Step 2: Convert to fraction form
    61,913.76/85,453.44 = 35,056.32/x
  3. Step 3: Cross multiply
    61,913.76x = 85,453.44 × 35,056.32
  4. Step 4: Simplify right side
    61,913.76x = 2,995,683,137.74
  5. Step 5: Solve for x
    x = 2,995,683,137.74/61,913.76
  6. Step 6: Final answer
    x = 48,384.77

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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.