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Finding the Fourth Proportional to 63,400.80, 87,495.90 and 35,106.54

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Solution

The fourth proportional to 63,400.80, 87,495.90 and 35,106.54 is: 48,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,400.80 : 87,495.90 = 35,106.54 : x
  2. Step 2: Convert to fraction form
    63,400.80/87,495.90 = 35,106.54/x
  3. Step 3: Cross multiply
    63,400.80x = 87,495.90 × 35,106.54
  4. Step 4: Simplify right side
    63,400.80x = 3,071,678,313.19
  5. Step 5: Solve for x
    x = 3,071,678,313.19/63,400.80
  6. Step 6: Final answer
    x = 48,448.57

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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.