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Finding the Fourth Proportional to 29,762.60, 44,643.86 and 12,220.08

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Solution

The fourth proportional to 29,762.60, 44,643.86 and 12,220.08 is: 18,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,762.60 : 44,643.86 = 12,220.08 : x
  2. Step 2: Convert to fraction form
    29,762.60/44,643.86 = 12,220.08/x
  3. Step 3: Cross multiply
    29,762.60x = 44,643.86 × 12,220.08
  4. Step 4: Simplify right side
    29,762.60x = 545,551,540.71
  5. Step 5: Solve for x
    x = 545,551,540.71/29,762.60
  6. Step 6: Final answer
    x = 18,330.10

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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.