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Finding the Fourth Proportional to 29,699.65, 40,986.54 and 16,272.07

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Solution

The fourth proportional to 29,699.65, 40,986.54 and 16,272.07 is: 22,456.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,699.65 : 40,986.54 = 16,272.07 : x
  2. Step 2: Convert to fraction form
    29,699.65/40,986.54 = 16,272.07/x
  3. Step 3: Cross multiply
    29,699.65x = 40,986.54 × 16,272.07
  4. Step 4: Simplify right side
    29,699.65x = 666,935,643.01
  5. Step 5: Solve for x
    x = 666,935,643.01/29,699.65
  6. Step 6: Final answer
    x = 22,456.01

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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.