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Finding the Fourth Proportional to 64,253.85, 96,385.65 and 19,885.09

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Solution

The fourth proportional to 64,253.85, 96,385.65 and 19,885.09 is: 29,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,253.85 : 96,385.65 = 19,885.09 : x
  2. Step 2: Convert to fraction form
    64,253.85/96,385.65 = 19,885.09/x
  3. Step 3: Cross multiply
    64,253.85x = 96,385.65 × 19,885.09
  4. Step 4: Simplify right side
    64,253.85x = 1,916,637,324.96
  5. Step 5: Solve for x
    x = 1,916,637,324.96/64,253.85
  6. Step 6: Final answer
    x = 29,829.14

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1.5x scale

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.