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Finding the Fourth Proportional to 65,069.52, 97,606.44 and 18,321

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Solution

The fourth proportional to 65,069.52, 97,606.44 and 18,321 is: 27,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,069.52 : 97,606.44 = 18,321 : x
  2. Step 2: Convert to fraction form
    65,069.52/97,606.44 = 18,321/x
  3. Step 3: Cross multiply
    65,069.52x = 97,606.44 × 18,321
  4. Step 4: Simplify right side
    65,069.52x = 1,788,247,587.24
  5. Step 5: Solve for x
    x = 1,788,247,587.24/65,069.52
  6. Step 6: Final answer
    x = 27,482.11

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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.