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Finding the Fourth Proportional to 64,860.54, 97,291.08 and 18,113.28

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Solution

The fourth proportional to 64,860.54, 97,291.08 and 18,113.28 is: 27,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,860.54 : 97,291.08 = 18,113.28 : x
  2. Step 2: Convert to fraction form
    64,860.54/97,291.08 = 18,113.28/x
  3. Step 3: Cross multiply
    64,860.54x = 97,291.08 × 18,113.28
  4. Step 4: Simplify right side
    64,860.54x = 1,762,260,573.54
  5. Step 5: Solve for x
    x = 1,762,260,573.54/64,860.54
  6. Step 6: Final answer
    x = 27,170.00

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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.