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Finding the Fourth Proportional to 29,172, 40,259.16 and 16,596.72

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Solution

The fourth proportional to 29,172, 40,259.16 and 16,596.72 is: 22,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,172 : 40,259.16 = 16,596.72 : x
  2. Step 2: Convert to fraction form
    29,172/40,259.16 = 16,596.72/x
  3. Step 3: Cross multiply
    29,172x = 40,259.16 × 16,596.72
  4. Step 4: Simplify right side
    29,172x = 668,170,005.96
  5. Step 5: Solve for x
    x = 668,170,005.96/29,172
  6. Step 6: Final answer
    x = 22,904.50

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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.