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Finding the Fourth Proportional to 64,894.64, 97,341.95 and 18,147.51

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Solution

The fourth proportional to 64,894.64, 97,341.95 and 18,147.51 is: 27,221.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,894.64 : 97,341.95 = 18,147.51 : x
  2. Step 2: Convert to fraction form
    64,894.64/97,341.95 = 18,147.51/x
  3. Step 3: Cross multiply
    64,894.64x = 97,341.95 × 18,147.51
  4. Step 4: Simplify right side
    64,894.64x = 1,766,514,056.41
  5. Step 5: Solve for x
    x = 1,766,514,056.41/64,894.64
  6. Step 6: Final answer
    x = 27,221.27

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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.