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Finding the Fourth Proportional to 64,696.16, 89,275.56 and 36,406.64

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Solution

The fourth proportional to 64,696.16, 89,275.56 and 36,406.64 is: 50,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,696.16 : 89,275.56 = 36,406.64 : x
  2. Step 2: Convert to fraction form
    64,696.16/89,275.56 = 36,406.64/x
  3. Step 3: Cross multiply
    64,696.16x = 89,275.56 × 36,406.64
  4. Step 4: Simplify right side
    64,696.16x = 3,250,223,173.72
  5. Step 5: Solve for x
    x = 3,250,223,173.72/64,696.16
  6. Step 6: Final answer
    x = 50,238.27

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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.