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Finding the Fourth Proportional to 27,042.16, 40,563.06 and 7,320.64

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Solution

The fourth proportional to 27,042.16, 40,563.06 and 7,320.64 is: 10,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,042.16 : 40,563.06 = 7,320.64 : x
  2. Step 2: Convert to fraction form
    27,042.16/40,563.06 = 7,320.64/x
  3. Step 3: Cross multiply
    27,042.16x = 40,563.06 × 7,320.64
  4. Step 4: Simplify right side
    27,042.16x = 296,947,559.56
  5. Step 5: Solve for x
    x = 296,947,559.56/27,042.16
  6. Step 6: Final answer
    x = 10,980.91

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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.