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Finding the Fourth Proportional to 7,047.39, 9,725.27 and 3,903.51

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Solution

The fourth proportional to 7,047.39, 9,725.27 and 3,903.51 is: 5,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.39 : 9,725.27 = 3,903.51 : x
  2. Step 2: Convert to fraction form
    7,047.39/9,725.27 = 3,903.51/x
  3. Step 3: Cross multiply
    7,047.39x = 9,725.27 × 3,903.51
  4. Step 4: Simplify right side
    7,047.39x = 37,962,688.70
  5. Step 5: Solve for x
    x = 37,962,688.70/7,047.39
  6. Step 6: Final answer
    x = 5,386.77

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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.