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Finding the Fourth Proportional to 44,567.88, 66,848.46 and 12,978.18

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Solution

The fourth proportional to 44,567.88, 66,848.46 and 12,978.18 is: 19,466.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,567.88 : 66,848.46 = 12,978.18 : x
  2. Step 2: Convert to fraction form
    44,567.88/66,848.46 = 12,978.18/x
  3. Step 3: Cross multiply
    44,567.88x = 66,848.46 × 12,978.18
  4. Step 4: Simplify right side
    44,567.88x = 867,571,346.60
  5. Step 5: Solve for x
    x = 867,571,346.60/44,567.88
  6. Step 6: Final answer
    x = 19,466.29

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1.5x scale

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.