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Finding the Fourth Proportional to 23,315.92, 34,980.72 and 7,520.64

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Solution

The fourth proportional to 23,315.92, 34,980.72 and 7,520.64 is: 11,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,315.92 : 34,980.72 = 7,520.64 : x
  2. Step 2: Convert to fraction form
    23,315.92/34,980.72 = 7,520.64/x
  3. Step 3: Cross multiply
    23,315.92x = 34,980.72 × 7,520.64
  4. Step 4: Simplify right side
    23,315.92x = 263,077,242.68
  5. Step 5: Solve for x
    x = 263,077,242.68/23,315.92
  6. Step 6: Final answer
    x = 11,283.16

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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.