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Finding the Fourth Proportional to 29,391.68, 40,537.06 and 19,330.45

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Solution

The fourth proportional to 29,391.68, 40,537.06 and 19,330.45 is: 26,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,391.68 : 40,537.06 = 19,330.45 : x
  2. Step 2: Convert to fraction form
    29,391.68/40,537.06 = 19,330.45/x
  3. Step 3: Cross multiply
    29,391.68x = 40,537.06 × 19,330.45
  4. Step 4: Simplify right side
    29,391.68x = 783,599,686.31
  5. Step 5: Solve for x
    x = 783,599,686.31/29,391.68
  6. Step 6: Final answer
    x = 26,660.60

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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.