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Finding the Fourth Proportional to 64,784.01, 89,402.93 and 36,102.89

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Solution

The fourth proportional to 64,784.01, 89,402.93 and 36,102.89 is: 49,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,784.01 : 89,402.93 = 36,102.89 : x
  2. Step 2: Convert to fraction form
    64,784.01/89,402.93 = 36,102.89/x
  3. Step 3: Cross multiply
    64,784.01x = 89,402.93 × 36,102.89
  4. Step 4: Simplify right side
    64,784.01x = 3,227,704,461.23
  5. Step 5: Solve for x
    x = 3,227,704,461.23/64,784.01
  6. Step 6: Final answer
    x = 49,822.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.