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Finding the Fourth Proportional to 60,805.65, 83,887.67 and 40,630.58

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Solution

The fourth proportional to 60,805.65, 83,887.67 and 40,630.58 is: 56,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,805.65 : 83,887.67 = 40,630.58 : x
  2. Step 2: Convert to fraction form
    60,805.65/83,887.67 = 40,630.58/x
  3. Step 3: Cross multiply
    60,805.65x = 83,887.67 × 40,630.58
  4. Step 4: Simplify right side
    60,805.65x = 3,408,404,369.09
  5. Step 5: Solve for x
    x = 3,408,404,369.09/60,805.65
  6. Step 6: Final answer
    x = 56,054.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.