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Finding the Fourth Proportional to 64,426.88, 96,649.43 and 20,058.12

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Solution

The fourth proportional to 64,426.88, 96,649.43 and 20,058.12 is: 30,090.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,426.88 : 96,649.43 = 20,058.12 : x
  2. Step 2: Convert to fraction form
    64,426.88/96,649.43 = 20,058.12/x
  3. Step 3: Cross multiply
    64,426.88x = 96,649.43 × 20,058.12
  4. Step 4: Simplify right side
    64,426.88x = 1,938,605,764.58
  5. Step 5: Solve for x
    x = 1,938,605,764.58/64,426.88
  6. Step 6: Final answer
    x = 30,090.01

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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.