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Finding the Fourth Proportional to 76,360.01, 105,380.36 and 47,696.64

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Solution

The fourth proportional to 76,360.01, 105,380.36 and 47,696.64 is: 65,823.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,360.01 : 105,380.36 = 47,696.64 : x
  2. Step 2: Convert to fraction form
    76,360.01/105,380.36 = 47,696.64/x
  3. Step 3: Cross multiply
    76,360.01x = 105,380.36 × 47,696.64
  4. Step 4: Simplify right side
    76,360.01x = 5,026,289,093.99
  5. Step 5: Solve for x
    x = 5,026,289,093.99/76,360.01
  6. Step 6: Final answer
    x = 65,823.58

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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.