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Finding the Fourth Proportional to 64,751.64, 97,116.12 and 18,008.16

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Solution

The fourth proportional to 64,751.64, 97,116.12 and 18,008.16 is: 27,009.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,751.64 : 97,116.12 = 18,008.16 : x
  2. Step 2: Convert to fraction form
    64,751.64/97,116.12 = 18,008.16/x
  3. Step 3: Cross multiply
    64,751.64x = 97,116.12 × 18,008.16
  4. Step 4: Simplify right side
    64,751.64x = 1,748,882,627.54
  5. Step 5: Solve for x
    x = 1,748,882,627.54/64,751.64
  6. Step 6: Final answer
    x = 27,009.09

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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.