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Finding the Fourth Proportional to 7,044.81, 9,715.20 and 5,256.60

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Solution

The fourth proportional to 7,044.81, 9,715.20 and 5,256.60 is: 7,249.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044.81 : 9,715.20 = 5,256.60 : x
  2. Step 2: Convert to fraction form
    7,044.81/9,715.20 = 5,256.60/x
  3. Step 3: Cross multiply
    7,044.81x = 9,715.20 × 5,256.60
  4. Step 4: Simplify right side
    7,044.81x = 51,068,920.32
  5. Step 5: Solve for x
    x = 51,068,920.32/7,044.81
  6. Step 6: Final answer
    x = 7,249.16

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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.