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Finding the Fourth Proportional to 42,336, 63,518.22 and 29,698.92

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Solution

The fourth proportional to 42,336, 63,518.22 and 29,698.92 is: 44,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,336 : 63,518.22 = 29,698.92 : x
  2. Step 2: Convert to fraction form
    42,336/63,518.22 = 29,698.92/x
  3. Step 3: Cross multiply
    42,336x = 63,518.22 × 29,698.92
  4. Step 4: Simplify right side
    42,336x = 1,886,422,534.32
  5. Step 5: Solve for x
    x = 1,886,422,534.32/42,336
  6. Step 6: Final answer
    x = 44,558.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.