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Finding the Fourth Proportional to 7,113.65, 9,812.26 and 4,319.15

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Solution

The fourth proportional to 7,113.65, 9,812.26 and 4,319.15 is: 5,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.65 : 9,812.26 = 4,319.15 : x
  2. Step 2: Convert to fraction form
    7,113.65/9,812.26 = 4,319.15/x
  3. Step 3: Cross multiply
    7,113.65x = 9,812.26 × 4,319.15
  4. Step 4: Simplify right side
    7,113.65x = 42,380,636.51
  5. Step 5: Solve for x
    x = 42,380,636.51/7,113.65
  6. Step 6: Final answer
    x = 5,957.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.