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Finding the Fourth Proportional to 10,571,855.90, 14,768,711.80 and 10,571,855.90

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Solution

The fourth proportional to 10,571,855.90, 14,768,711.80 and 10,571,855.90 is: 14,768,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571,855.90 : 14,768,711.80 = 10,571,855.90 : x
  2. Step 2: Convert to fraction form
    10,571,855.90/14,768,711.80 = 10,571,855.90/x
  3. Step 3: Cross multiply
    10,571,855.90x = 14,768,711.80 × 10,571,855.90
  4. Step 4: Simplify right side
    10,571,855.90x = 156,132,692,978,229.62
  5. Step 5: Solve for x
    x = 156,132,692,978,229.62/10,571,855.90
  6. Step 6: Final answer
    x = 14,768,711.80

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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.