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Finding the Fourth Proportional to 9,840.61, 14,756.05 and 4,291.55

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Solution

The fourth proportional to 9,840.61, 14,756.05 and 4,291.55 is: 6,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.61 : 14,756.05 = 4,291.55 : x
  2. Step 2: Convert to fraction form
    9,840.61/14,756.05 = 4,291.55/x
  3. Step 3: Cross multiply
    9,840.61x = 14,756.05 × 4,291.55
  4. Step 4: Simplify right side
    9,840.61x = 63,326,231.14
  5. Step 5: Solve for x
    x = 63,326,231.14/9,840.61
  6. Step 6: Final answer
    x = 6,435.20

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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.