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Finding the Fourth Proportional to 29,647.83, 40,935.40 and 18,332.84

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Solution

The fourth proportional to 29,647.83, 40,935.40 and 18,332.84 is: 25,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,647.83 : 40,935.40 = 18,332.84 : x
  2. Step 2: Convert to fraction form
    29,647.83/40,935.40 = 18,332.84/x
  3. Step 3: Cross multiply
    29,647.83x = 40,935.40 × 18,332.84
  4. Step 4: Simplify right side
    29,647.83x = 750,462,138.54
  5. Step 5: Solve for x
    x = 750,462,138.54/29,647.83
  6. Step 6: Final answer
    x = 25,312.55

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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.