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Finding the Fourth Proportional to 64,673.64, 96,999.12 and 17,930.16

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Solution

The fourth proportional to 64,673.64, 96,999.12 and 17,930.16 is: 26,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,673.64 : 96,999.12 = 17,930.16 : x
  2. Step 2: Convert to fraction form
    64,673.64/96,999.12 = 17,930.16/x
  3. Step 3: Cross multiply
    64,673.64x = 96,999.12 × 17,930.16
  4. Step 4: Simplify right side
    64,673.64x = 1,739,209,741.46
  5. Step 5: Solve for x
    x = 1,739,209,741.46/64,673.64
  6. Step 6: Final answer
    x = 26,892.10

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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.