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Finding the Fourth Proportional to 83,592.59, 115,357.79 and 47,783.39

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Solution

The fourth proportional to 83,592.59, 115,357.79 and 47,783.39 is: 65,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,592.59 : 115,357.79 = 47,783.39 : x
  2. Step 2: Convert to fraction form
    83,592.59/115,357.79 = 47,783.39/x
  3. Step 3: Cross multiply
    83,592.59x = 115,357.79 × 47,783.39
  4. Step 4: Simplify right side
    83,592.59x = 5,512,185,453.40
  5. Step 5: Solve for x
    x = 5,512,185,453.40/83,592.59
  6. Step 6: Final answer
    x = 65,941.08

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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.