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Finding the Fourth Proportional to 43,987.60, 65,981.40 and 16,296.40

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Solution

The fourth proportional to 43,987.60, 65,981.40 and 16,296.40 is: 24,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.60 : 65,981.40 = 16,296.40 : x
  2. Step 2: Convert to fraction form
    43,987.60/65,981.40 = 16,296.40/x
  3. Step 3: Cross multiply
    43,987.60x = 65,981.40 × 16,296.40
  4. Step 4: Simplify right side
    43,987.60x = 1,075,259,286.96
  5. Step 5: Solve for x
    x = 1,075,259,286.96/43,987.60
  6. Step 6: Final answer
    x = 24,444.60

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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.