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Finding the Fourth Proportional to 18,152.40, 25,075.80 and 14,013.84

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Solution

The fourth proportional to 18,152.40, 25,075.80 and 14,013.84 is: 19,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.40 : 25,075.80 = 14,013.84 : x
  2. Step 2: Convert to fraction form
    18,152.40/25,075.80 = 14,013.84/x
  3. Step 3: Cross multiply
    18,152.40x = 25,075.80 × 14,013.84
  4. Step 4: Simplify right side
    18,152.40x = 351,408,249.07
  5. Step 5: Solve for x
    x = 351,408,249.07/18,152.40
  6. Step 6: Final answer
    x = 19,358.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.