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Finding the Fourth Proportional to 17,412.40, 26,075.40 and 13,956.40

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Solution

The fourth proportional to 17,412.40, 26,075.40 and 13,956.40 is: 20,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,412.40 : 26,075.40 = 13,956.40 : x
  2. Step 2: Convert to fraction form
    17,412.40/26,075.40 = 13,956.40/x
  3. Step 3: Cross multiply
    17,412.40x = 26,075.40 × 13,956.40
  4. Step 4: Simplify right side
    17,412.40x = 363,918,712.56
  5. Step 5: Solve for x
    x = 363,918,712.56/17,412.40
  6. Step 6: Final answer
    x = 20,899.97

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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.