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Finding the Fourth Proportional to 29,700.50, 40,986.76 and 16,272.01

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Solution

The fourth proportional to 29,700.50, 40,986.76 and 16,272.01 is: 22,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,700.50 : 40,986.76 = 16,272.01 : x
  2. Step 2: Convert to fraction form
    29,700.50/40,986.76 = 16,272.01/x
  3. Step 3: Cross multiply
    29,700.50x = 40,986.76 × 16,272.01
  4. Step 4: Simplify right side
    29,700.50x = 666,936,968.59
  5. Step 5: Solve for x
    x = 666,936,968.59/29,700.50
  6. Step 6: Final answer
    x = 22,455.41

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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.