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Finding the Fourth Proportional to 77,570.75, 107,059.19 and 47,373.59

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Solution

The fourth proportional to 77,570.75, 107,059.19 and 47,373.59 is: 65,382.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,570.75 : 107,059.19 = 47,373.59 : x
  2. Step 2: Convert to fraction form
    77,570.75/107,059.19 = 47,373.59/x
  3. Step 3: Cross multiply
    77,570.75x = 107,059.19 × 47,373.59
  4. Step 4: Simplify right side
    77,570.75x = 5,071,778,203.57
  5. Step 5: Solve for x
    x = 5,071,778,203.57/77,570.75
  6. Step 6: Final answer
    x = 65,382.61

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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.