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Finding the Fourth Proportional to 64,750.58, 89,357.56 and 36,457.28

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Solution

The fourth proportional to 64,750.58, 89,357.56 and 36,457.28 is: 50,312.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,750.58 : 89,357.56 = 36,457.28 : x
  2. Step 2: Convert to fraction form
    64,750.58/89,357.56 = 36,457.28/x
  3. Step 3: Cross multiply
    64,750.58x = 89,357.56 × 36,457.28
  4. Step 4: Simplify right side
    64,750.58x = 3,257,733,585.04
  5. Step 5: Solve for x
    x = 3,257,733,585.04/64,750.58
  6. Step 6: Final answer
    x = 50,312.04

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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.