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Finding the Fourth Proportional to 45,867.34, 68,801.07 and 12,587.86

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Solution

The fourth proportional to 45,867.34, 68,801.07 and 12,587.86 is: 18,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,867.34 : 68,801.07 = 12,587.86 : x
  2. Step 2: Convert to fraction form
    45,867.34/68,801.07 = 12,587.86/x
  3. Step 3: Cross multiply
    45,867.34x = 68,801.07 × 12,587.86
  4. Step 4: Simplify right side
    45,867.34x = 866,058,237.01
  5. Step 5: Solve for x
    x = 866,058,237.01/45,867.34
  6. Step 6: Final answer
    x = 18,881.81

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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.