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Finding the Fourth Proportional to 29,403.70, 40,575.67 and 16,656.55

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Solution

The fourth proportional to 29,403.70, 40,575.67 and 16,656.55 is: 22,985.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,403.70 : 40,575.67 = 16,656.55 : x
  2. Step 2: Convert to fraction form
    29,403.70/40,575.67 = 16,656.55/x
  3. Step 3: Cross multiply
    29,403.70x = 40,575.67 × 16,656.55
  4. Step 4: Simplify right side
    29,403.70x = 675,850,533.06
  5. Step 5: Solve for x
    x = 675,850,533.06/29,403.70
  6. Step 6: Final answer
    x = 22,985.22

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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.