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Finding the Fourth Proportional to 7,047.88, 9,721.39 and 4,533.17

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Solution

The fourth proportional to 7,047.88, 9,721.39 and 4,533.17 is: 6,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.88 : 9,721.39 = 4,533.17 : x
  2. Step 2: Convert to fraction form
    7,047.88/9,721.39 = 4,533.17/x
  3. Step 3: Cross multiply
    7,047.88x = 9,721.39 × 4,533.17
  4. Step 4: Simplify right side
    7,047.88x = 44,068,715.14
  5. Step 5: Solve for x
    x = 44,068,715.14/7,047.88
  6. Step 6: Final answer
    x = 6,252.76

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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.