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Finding the Fourth Proportional to 7,111.53, 9,814.03 and 4,725.54

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Solution

The fourth proportional to 7,111.53, 9,814.03 and 4,725.54 is: 6,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.53 : 9,814.03 = 4,725.54 : x
  2. Step 2: Convert to fraction form
    7,111.53/9,814.03 = 4,725.54/x
  3. Step 3: Cross multiply
    7,111.53x = 9,814.03 × 4,725.54
  4. Step 4: Simplify right side
    7,111.53x = 46,376,579.51
  5. Step 5: Solve for x
    x = 46,376,579.51/7,111.53
  6. Step 6: Final answer
    x = 6,521.32

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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.