Home / 70,522.12-105,782.01-28,401.14

Finding the Fourth Proportional to 70,522.12, 105,782.01 and 28,401.14

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Solution

The fourth proportional to 70,522.12, 105,782.01 and 28,401.14 is: 42,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,522.12 : 105,782.01 = 28,401.14 : x
  2. Step 2: Convert to fraction form
    70,522.12/105,782.01 = 28,401.14/x
  3. Step 3: Cross multiply
    70,522.12x = 105,782.01 × 28,401.14
  4. Step 4: Simplify right side
    70,522.12x = 3,004,329,833.44
  5. Step 5: Solve for x
    x = 3,004,329,833.44/70,522.12
  6. Step 6: Final answer
    x = 42,601.24

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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.