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Finding the Fourth Proportional to 8,220,858.55, 11,528,097.65 and 8,220,858.55

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Solution

The fourth proportional to 8,220,858.55, 11,528,097.65 and 8,220,858.55 is: 11,528,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220,858.55 : 11,528,097.65 = 8,220,858.55 : x
  2. Step 2: Convert to fraction form
    8,220,858.55/11,528,097.65 = 8,220,858.55/x
  3. Step 3: Cross multiply
    8,220,858.55x = 11,528,097.65 × 8,220,858.55
  4. Step 4: Simplify right side
    8,220,858.55x = 94,770,860,131,237.41
  5. Step 5: Solve for x
    x = 94,770,860,131,237.41/8,220,858.55
  6. Step 6: Final answer
    x = 11,528,097.65

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1.5x scale

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.