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Finding the Fourth Proportional to 32,812.40, 45,281.10 and 17,908.40

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Solution

The fourth proportional to 32,812.40, 45,281.10 and 17,908.40 is: 24,713.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,812.40 : 45,281.10 = 17,908.40 : x
  2. Step 2: Convert to fraction form
    32,812.40/45,281.10 = 17,908.40/x
  3. Step 3: Cross multiply
    32,812.40x = 45,281.10 × 17,908.40
  4. Step 4: Simplify right side
    32,812.40x = 810,912,051.24
  5. Step 5: Solve for x
    x = 810,912,051.24/32,812.40
  6. Step 6: Final answer
    x = 24,713.59

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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.