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Finding the Fourth Proportional to 43,648.88, 65,482.43 and 14,069.70

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Solution

The fourth proportional to 43,648.88, 65,482.43 and 14,069.70 is: 21,107.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,648.88 : 65,482.43 = 14,069.70 : x
  2. Step 2: Convert to fraction form
    43,648.88/65,482.43 = 14,069.70/x
  3. Step 3: Cross multiply
    43,648.88x = 65,482.43 × 14,069.70
  4. Step 4: Simplify right side
    43,648.88x = 921,318,075.02
  5. Step 5: Solve for x
    x = 921,318,075.02/43,648.88
  6. Step 6: Final answer
    x = 21,107.49

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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.