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Finding the Fourth Proportional to 70,054.48, 105,051.96 and 25,662.80

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Solution

The fourth proportional to 70,054.48, 105,051.96 and 25,662.80 is: 38,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,054.48 : 105,051.96 = 25,662.80 : x
  2. Step 2: Convert to fraction form
    70,054.48/105,051.96 = 25,662.80/x
  3. Step 3: Cross multiply
    70,054.48x = 105,051.96 × 25,662.80
  4. Step 4: Simplify right side
    70,054.48x = 2,695,927,439.09
  5. Step 5: Solve for x
    x = 2,695,927,439.09/70,054.48
  6. Step 6: Final answer
    x = 38,483.30

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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.