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Finding the Fourth Proportional to 59,779.68, 89,669.16 and 18,226.68

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Solution

The fourth proportional to 59,779.68, 89,669.16 and 18,226.68 is: 27,339.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,779.68 : 89,669.16 = 18,226.68 : x
  2. Step 2: Convert to fraction form
    59,779.68/89,669.16 = 18,226.68/x
  3. Step 3: Cross multiply
    59,779.68x = 89,669.16 × 18,226.68
  4. Step 4: Simplify right side
    59,779.68x = 1,634,371,085.19
  5. Step 5: Solve for x
    x = 1,634,371,085.19/59,779.68
  6. Step 6: Final answer
    x = 27,339.91

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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.