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Finding the Fourth Proportional to 32,672.84, 45,075.54 and 21,338.76

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Solution

The fourth proportional to 32,672.84, 45,075.54 and 21,338.76 is: 29,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,672.84 : 45,075.54 = 21,338.76 : x
  2. Step 2: Convert to fraction form
    32,672.84/45,075.54 = 21,338.76/x
  3. Step 3: Cross multiply
    32,672.84x = 45,075.54 × 21,338.76
  4. Step 4: Simplify right side
    32,672.84x = 961,856,129.93
  5. Step 5: Solve for x
    x = 961,856,129.93/32,672.84
  6. Step 6: Final answer
    x = 29,439.01

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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.