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Finding the Fourth Proportional to 30,809.56, 46,214.36 and 7,436

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Solution

The fourth proportional to 30,809.56, 46,214.36 and 7,436 is: 11,154.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809.56 : 46,214.36 = 7,436 : x
  2. Step 2: Convert to fraction form
    30,809.56/46,214.36 = 7,436/x
  3. Step 3: Cross multiply
    30,809.56x = 46,214.36 × 7,436
  4. Step 4: Simplify right side
    30,809.56x = 343,649,980.96
  5. Step 5: Solve for x
    x = 343,649,980.96/30,809.56
  6. Step 6: Final answer
    x = 11,154.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.