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Finding the Fourth Proportional to 58,636.69, 80,918.58 and 31,779.19

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Solution

The fourth proportional to 58,636.69, 80,918.58 and 31,779.19 is: 43,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,636.69 : 80,918.58 = 31,779.19 : x
  2. Step 2: Convert to fraction form
    58,636.69/80,918.58 = 31,779.19/x
  3. Step 3: Cross multiply
    58,636.69x = 80,918.58 × 31,779.19
  4. Step 4: Simplify right side
    58,636.69x = 2,571,526,726.05
  5. Step 5: Solve for x
    x = 2,571,526,726.05/58,636.69
  6. Step 6: Final answer
    x = 43,855.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.