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Finding the Fourth Proportional to 29,681.94, 40,943.97 and 18,484.50

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Solution

The fourth proportional to 29,681.94, 40,943.97 and 18,484.50 is: 25,497.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,681.94 : 40,943.97 = 18,484.50 : x
  2. Step 2: Convert to fraction form
    29,681.94/40,943.97 = 18,484.50/x
  3. Step 3: Cross multiply
    29,681.94x = 40,943.97 × 18,484.50
  4. Step 4: Simplify right side
    29,681.94x = 756,828,813.47
  5. Step 5: Solve for x
    x = 756,828,813.47/29,681.94
  6. Step 6: Final answer
    x = 25,497.96

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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.