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Finding the Fourth Proportional to 64,886.45, 97,344.08 and 19,914.05

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Solution

The fourth proportional to 64,886.45, 97,344.08 and 19,914.05 is: 29,875.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,886.45 : 97,344.08 = 19,914.05 : x
  2. Step 2: Convert to fraction form
    64,886.45/97,344.08 = 19,914.05/x
  3. Step 3: Cross multiply
    64,886.45x = 97,344.08 × 19,914.05
  4. Step 4: Simplify right side
    64,886.45x = 1,938,514,290.03
  5. Step 5: Solve for x
    x = 1,938,514,290.03/64,886.45
  6. Step 6: Final answer
    x = 29,875.49

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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.