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Finding the Fourth Proportional to 52,915.68, 79,322.82 and 19,626.84

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Solution

The fourth proportional to 52,915.68, 79,322.82 and 19,626.84 is: 29,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,915.68 : 79,322.82 = 19,626.84 : x
  2. Step 2: Convert to fraction form
    52,915.68/79,322.82 = 19,626.84/x
  3. Step 3: Cross multiply
    52,915.68x = 79,322.82 × 19,626.84
  4. Step 4: Simplify right side
    52,915.68x = 1,556,856,296.49
  5. Step 5: Solve for x
    x = 1,556,856,296.49/52,915.68
  6. Step 6: Final answer
    x = 29,421.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.