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Finding the Fourth Proportional to 29,709.75, 44,574.55 and 9,720.15

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Solution

The fourth proportional to 29,709.75, 44,574.55 and 9,720.15 is: 14,583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,709.75 : 44,574.55 = 9,720.15 : x
  2. Step 2: Convert to fraction form
    29,709.75/44,574.55 = 9,720.15/x
  3. Step 3: Cross multiply
    29,709.75x = 44,574.55 × 9,720.15
  4. Step 4: Simplify right side
    29,709.75x = 433,271,287.88
  5. Step 5: Solve for x
    x = 433,271,287.88/29,709.75
  6. Step 6: Final answer
    x = 14,583.47

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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.