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Finding the Fourth Proportional to 29,681.84, 40,961.60 and 16,253.66

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Solution

The fourth proportional to 29,681.84, 40,961.60 and 16,253.66 is: 22,430.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,681.84 : 40,961.60 = 16,253.66 : x
  2. Step 2: Convert to fraction form
    29,681.84/40,961.60 = 16,253.66/x
  3. Step 3: Cross multiply
    29,681.84x = 40,961.60 × 16,253.66
  4. Step 4: Simplify right side
    29,681.84x = 665,776,001.54
  5. Step 5: Solve for x
    x = 665,776,001.54/29,681.84
  6. Step 6: Final answer
    x = 22,430.41

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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.