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Finding the Fourth Proportional to 29,558.72, 40,796.10 and 28,230.08

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Solution

The fourth proportional to 29,558.72, 40,796.10 and 28,230.08 is: 38,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,558.72 : 40,796.10 = 28,230.08 : x
  2. Step 2: Convert to fraction form
    29,558.72/40,796.10 = 28,230.08/x
  3. Step 3: Cross multiply
    29,558.72x = 40,796.10 × 28,230.08
  4. Step 4: Simplify right side
    29,558.72x = 1,151,677,166.69
  5. Step 5: Solve for x
    x = 1,151,677,166.69/29,558.72
  6. Step 6: Final answer
    x = 38,962.35

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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.