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Finding the Fourth Proportional to 8,220,862.30, 11,528,102.90 and 8,220,862.30

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Solution

The fourth proportional to 8,220,862.30, 11,528,102.90 and 8,220,862.30 is: 11,528,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220,862.30 : 11,528,102.90 = 8,220,862.30 : x
  2. Step 2: Convert to fraction form
    8,220,862.30/11,528,102.90 = 8,220,862.30/x
  3. Step 3: Cross multiply
    8,220,862.30x = 11,528,102.90 × 8,220,862.30
  4. Step 4: Simplify right side
    8,220,862.30x = 94,770,946,521,130.67
  5. Step 5: Solve for x
    x = 94,770,946,521,130.67/8,220,862.30
  6. Step 6: Final answer
    x = 11,528,102.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.