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Finding the Fourth Proportional to 7,326.61, 10,962.46 and 4,354.21

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Solution

The fourth proportional to 7,326.61, 10,962.46 and 4,354.21 is: 6,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.61 : 10,962.46 = 4,354.21 : x
  2. Step 2: Convert to fraction form
    7,326.61/10,962.46 = 4,354.21/x
  3. Step 3: Cross multiply
    7,326.61x = 10,962.46 × 4,354.21
  4. Step 4: Simplify right side
    7,326.61x = 47,732,852.96
  5. Step 5: Solve for x
    x = 47,732,852.96/7,326.61
  6. Step 6: Final answer
    x = 6,515.00

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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.