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Finding the Fourth Proportional to 83,366.70, 115,035.33 and 47,554.57

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Solution

The fourth proportional to 83,366.70, 115,035.33 and 47,554.57 is: 65,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,366.70 : 115,035.33 = 47,554.57 : x
  2. Step 2: Convert to fraction form
    83,366.70/115,035.33 = 47,554.57/x
  3. Step 3: Cross multiply
    83,366.70x = 115,035.33 × 47,554.57
  4. Step 4: Simplify right side
    83,366.70x = 5,470,455,707.59
  5. Step 5: Solve for x
    x = 5,470,455,707.59/83,366.70
  6. Step 6: Final answer
    x = 65,619.20

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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.