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Finding the Fourth Proportional to 45,464.40, 68,199.84 and 15,878.88

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Solution

The fourth proportional to 45,464.40, 68,199.84 and 15,878.88 is: 23,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,464.40 : 68,199.84 = 15,878.88 : x
  2. Step 2: Convert to fraction form
    45,464.40/68,199.84 = 15,878.88/x
  3. Step 3: Cross multiply
    45,464.40x = 68,199.84 × 15,878.88
  4. Step 4: Simplify right side
    45,464.40x = 1,082,937,075.38
  5. Step 5: Solve for x
    x = 1,082,937,075.38/45,464.40
  6. Step 6: Final answer
    x = 23,819.45

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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.