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Finding the Fourth Proportional to 64,898.96, 97,347.86 and 20,525.74

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Solution

The fourth proportional to 64,898.96, 97,347.86 and 20,525.74 is: 30,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,898.96 : 97,347.86 = 20,525.74 : x
  2. Step 2: Convert to fraction form
    64,898.96/97,347.86 = 20,525.74/x
  3. Step 3: Cross multiply
    64,898.96x = 97,347.86 × 20,525.74
  4. Step 4: Simplify right side
    64,898.96x = 1,998,136,594.89
  5. Step 5: Solve for x
    x = 1,998,136,594.89/64,898.96
  6. Step 6: Final answer
    x = 30,788.42

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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.