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Finding the Fourth Proportional to 59,415.41, 89,118.75 and 21,958.01

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Solution

The fourth proportional to 59,415.41, 89,118.75 and 21,958.01 is: 32,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,415.41 : 89,118.75 = 21,958.01 : x
  2. Step 2: Convert to fraction form
    59,415.41/89,118.75 = 21,958.01/x
  3. Step 3: Cross multiply
    59,415.41x = 89,118.75 × 21,958.01
  4. Step 4: Simplify right side
    59,415.41x = 1,956,870,403.69
  5. Step 5: Solve for x
    x = 1,956,870,403.69/59,415.41
  6. Step 6: Final answer
    x = 32,935.40

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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.