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Finding the Fourth Proportional to 43,907.09, 65,867.04 and 14,317.65

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Solution

The fourth proportional to 43,907.09, 65,867.04 and 14,317.65 is: 21,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,907.09 : 65,867.04 = 14,317.65 : x
  2. Step 2: Convert to fraction form
    43,907.09/65,867.04 = 14,317.65/x
  3. Step 3: Cross multiply
    43,907.09x = 65,867.04 × 14,317.65
  4. Step 4: Simplify right side
    43,907.09x = 943,061,225.26
  5. Step 5: Solve for x
    x = 943,061,225.26/43,907.09
  6. Step 6: Final answer
    x = 21,478.57

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1.5x scale

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.