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Finding the Fourth Proportional to 40,645.32, 60,973.64 and 12,567.64

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Solution

The fourth proportional to 40,645.32, 60,973.64 and 12,567.64 is: 18,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,645.32 : 60,973.64 = 12,567.64 : x
  2. Step 2: Convert to fraction form
    40,645.32/60,973.64 = 12,567.64/x
  3. Step 3: Cross multiply
    40,645.32x = 60,973.64 × 12,567.64
  4. Step 4: Simplify right side
    40,645.32x = 766,294,757.01
  5. Step 5: Solve for x
    x = 766,294,757.01/40,645.32
  6. Step 6: Final answer
    x = 18,853.21

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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.