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Finding the Fourth Proportional to 64,297.36, 96,407.16 and 43,457.68

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Solution

The fourth proportional to 64,297.36, 96,407.16 and 43,457.68 is: 65,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,297.36 : 96,407.16 = 43,457.68 : x
  2. Step 2: Convert to fraction form
    64,297.36/96,407.16 = 43,457.68/x
  3. Step 3: Cross multiply
    64,297.36x = 96,407.16 × 43,457.68
  4. Step 4: Simplify right side
    64,297.36x = 4,189,631,508.99
  5. Step 5: Solve for x
    x = 4,189,631,508.99/64,297.36
  6. Step 6: Final answer
    x = 65,160.24

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1.5x scale

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.