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Finding the Fourth Proportional to 29,669.50, 40,925.47 and 18,342.46

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Solution

The fourth proportional to 29,669.50, 40,925.47 and 18,342.46 is: 25,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,669.50 : 40,925.47 = 18,342.46 : x
  2. Step 2: Convert to fraction form
    29,669.50/40,925.47 = 18,342.46/x
  3. Step 3: Cross multiply
    29,669.50x = 40,925.47 × 18,342.46
  4. Step 4: Simplify right side
    29,669.50x = 750,673,500.12
  5. Step 5: Solve for x
    x = 750,673,500.12/29,669.50
  6. Step 6: Final answer
    x = 25,301.19

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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.