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Finding the Fourth Proportional to 29,420.32, 44,130.48 and 20,694.28

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Solution

The fourth proportional to 29,420.32, 44,130.48 and 20,694.28 is: 31,041.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,420.32 : 44,130.48 = 20,694.28 : x
  2. Step 2: Convert to fraction form
    29,420.32/44,130.48 = 20,694.28/x
  3. Step 3: Cross multiply
    29,420.32x = 44,130.48 × 20,694.28
  4. Step 4: Simplify right side
    29,420.32x = 913,248,509.65
  5. Step 5: Solve for x
    x = 913,248,509.65/29,420.32
  6. Step 6: Final answer
    x = 31,041.42

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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.