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Finding the Fourth Proportional to 9,254.76, 12,771.10 and 5,718.28

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Solution

The fourth proportional to 9,254.76, 12,771.10 and 5,718.28 is: 7,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,254.76 : 12,771.10 = 5,718.28 : x
  2. Step 2: Convert to fraction form
    9,254.76/12,771.10 = 5,718.28/x
  3. Step 3: Cross multiply
    9,254.76x = 12,771.10 × 5,718.28
  4. Step 4: Simplify right side
    9,254.76x = 73,028,725.71
  5. Step 5: Solve for x
    x = 73,028,725.71/9,254.76
  6. Step 6: Final answer
    x = 7,890.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.