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Finding the Fourth Proportional to 64,956.95, 97,443.63 and 20,567.84

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Solution

The fourth proportional to 64,956.95, 97,443.63 and 20,567.84 is: 30,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,956.95 : 97,443.63 = 20,567.84 : x
  2. Step 2: Convert to fraction form
    64,956.95/97,443.63 = 20,567.84/x
  3. Step 3: Cross multiply
    64,956.95x = 97,443.63 × 20,567.84
  4. Step 4: Simplify right side
    64,956.95x = 2,004,205,109.61
  5. Step 5: Solve for x
    x = 2,004,205,109.61/64,956.95
  6. Step 6: Final answer
    x = 30,854.36

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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.