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Finding the Fourth Proportional to 79,994.34, 110,387.70 and 47,765.39

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Solution

The fourth proportional to 79,994.34, 110,387.70 and 47,765.39 is: 65,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,994.34 : 110,387.70 = 47,765.39 : x
  2. Step 2: Convert to fraction form
    79,994.34/110,387.70 = 47,765.39/x
  3. Step 3: Cross multiply
    79,994.34x = 110,387.70 × 47,765.39
  4. Step 4: Simplify right side
    79,994.34x = 5,272,710,989.76
  5. Step 5: Solve for x
    x = 5,272,710,989.76/79,994.34
  6. Step 6: Final answer
    x = 65,913.55

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1.5x scale

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.