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Finding the Fourth Proportional to 63,640.39, 87,827.70 and 35,346.01

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Solution

The fourth proportional to 63,640.39, 87,827.70 and 35,346.01 is: 48,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,640.39 : 87,827.70 = 35,346.01 : x
  2. Step 2: Convert to fraction form
    63,640.39/87,827.70 = 35,346.01/x
  3. Step 3: Cross multiply
    63,640.39x = 87,827.70 × 35,346.01
  4. Step 4: Simplify right side
    63,640.39x = 3,104,358,762.48
  5. Step 5: Solve for x
    x = 3,104,358,762.48/63,640.39
  6. Step 6: Final answer
    x = 48,779.69

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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.