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Finding the Fourth Proportional to 8,835,368.40, 13,265,494.20 and 5,476,136.40

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Solution

The fourth proportional to 8,835,368.40, 13,265,494.20 and 5,476,136.40 is: 8,221,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835,368.40 : 13,265,494.20 = 5,476,136.40 : x
  2. Step 2: Convert to fraction form
    8,835,368.40/13,265,494.20 = 5,476,136.40/x
  3. Step 3: Cross multiply
    8,835,368.40x = 13,265,494.20 × 5,476,136.40
  4. Step 4: Simplify right side
    8,835,368.40x = 72,643,655,652,608.88
  5. Step 5: Solve for x
    x = 72,643,655,652,608.88/8,835,368.40
  6. Step 6: Final answer
    x = 8,221,915.87

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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.