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Finding the Fourth Proportional to 53,322.68, 79,994.82 and 15,883.40

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Solution

The fourth proportional to 53,322.68, 79,994.82 and 15,883.40 is: 23,828.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,322.68 : 79,994.82 = 15,883.40 : x
  2. Step 2: Convert to fraction form
    53,322.68/79,994.82 = 15,883.40/x
  3. Step 3: Cross multiply
    53,322.68x = 79,994.82 × 15,883.40
  4. Step 4: Simplify right side
    53,322.68x = 1,270,589,723.99
  5. Step 5: Solve for x
    x = 1,270,589,723.99/53,322.68
  6. Step 6: Final answer
    x = 23,828.32

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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.