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Finding the Fourth Proportional to 7,051.01, 9,730.32 and 3,907.18

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Solution

The fourth proportional to 7,051.01, 9,730.32 and 3,907.18 is: 5,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.01 : 9,730.32 = 3,907.18 : x
  2. Step 2: Convert to fraction form
    7,051.01/9,730.32 = 3,907.18/x
  3. Step 3: Cross multiply
    7,051.01x = 9,730.32 × 3,907.18
  4. Step 4: Simplify right side
    7,051.01x = 38,018,063.05
  5. Step 5: Solve for x
    x = 38,018,063.05/7,051.01
  6. Step 6: Final answer
    x = 5,391.86

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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.