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Finding the Fourth Proportional to 59,410.56, 89,129.06 and 19,966.50

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Solution

The fourth proportional to 59,410.56, 89,129.06 and 19,966.50 is: 29,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,410.56 : 89,129.06 = 19,966.50 : x
  2. Step 2: Convert to fraction form
    59,410.56/89,129.06 = 19,966.50/x
  3. Step 3: Cross multiply
    59,410.56x = 89,129.06 × 19,966.50
  4. Step 4: Simplify right side
    59,410.56x = 1,779,595,351.53
  5. Step 5: Solve for x
    x = 1,779,595,351.53/59,410.56
  6. Step 6: Final answer
    x = 29,954.19

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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.