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Finding the Fourth Proportional to 51,263.79, 70,744.08 and 30,043.08

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Solution

The fourth proportional to 51,263.79, 70,744.08 and 30,043.08 is: 41,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,263.79 : 70,744.08 = 30,043.08 : x
  2. Step 2: Convert to fraction form
    51,263.79/70,744.08 = 30,043.08/x
  3. Step 3: Cross multiply
    51,263.79x = 70,744.08 × 30,043.08
  4. Step 4: Simplify right side
    51,263.79x = 2,125,370,054.97
  5. Step 5: Solve for x
    x = 2,125,370,054.97/51,263.79
  6. Step 6: Final answer
    x = 41,459.48

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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.