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Finding the Fourth Proportional to 64,289.99, 96,457.67 and 28,748.00

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Solution

The fourth proportional to 64,289.99, 96,457.67 and 28,748.00 is: 43,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,289.99 : 96,457.67 = 28,748.00 : x
  2. Step 2: Convert to fraction form
    64,289.99/96,457.67 = 28,748.00/x
  3. Step 3: Cross multiply
    64,289.99x = 96,457.67 × 28,748.00
  4. Step 4: Simplify right side
    64,289.99x = 2,772,964,471.13
  5. Step 5: Solve for x
    x = 2,772,964,471.13/64,289.99
  6. Step 6: Final answer
    x = 43,132.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.