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Finding the Fourth Proportional to 63,457.53, 87,569.48 and 34,776.84

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Solution

The fourth proportional to 63,457.53, 87,569.48 and 34,776.84 is: 47,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,457.53 : 87,569.48 = 34,776.84 : x
  2. Step 2: Convert to fraction form
    63,457.53/87,569.48 = 34,776.84/x
  3. Step 3: Cross multiply
    63,457.53x = 87,569.48 × 34,776.84
  4. Step 4: Simplify right side
    63,457.53x = 3,045,389,183.11
  5. Step 5: Solve for x
    x = 3,045,389,183.11/63,457.53
  6. Step 6: Final answer
    x = 47,990.99

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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.