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Finding the Fourth Proportional to 45,290.65, 67,947.72 and 17,211.19

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Solution

The fourth proportional to 45,290.65, 67,947.72 and 17,211.19 is: 25,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,290.65 : 67,947.72 = 17,211.19 : x
  2. Step 2: Convert to fraction form
    45,290.65/67,947.72 = 17,211.19/x
  3. Step 3: Cross multiply
    45,290.65x = 67,947.72 × 17,211.19
  4. Step 4: Simplify right side
    45,290.65x = 1,169,461,118.99
  5. Step 5: Solve for x
    x = 1,169,461,118.99/45,290.65
  6. Step 6: Final answer
    x = 25,821.25

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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.