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Finding the Fourth Proportional to 13,841,567.78, 20,762,351.67 and 13,841,567.78

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Solution

The fourth proportional to 13,841,567.78, 20,762,351.67 and 13,841,567.78 is: 20,762,351.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841,567.78 : 20,762,351.67 = 13,841,567.78 : x
  2. Step 2: Convert to fraction form
    13,841,567.78/20,762,351.67 = 13,841,567.78/x
  3. Step 3: Cross multiply
    13,841,567.78x = 20,762,351.67 × 13,841,567.78
  4. Step 4: Simplify right side
    13,841,567.78x = 287,383,497,808,689.44
  5. Step 5: Solve for x
    x = 287,383,497,808,689.44/13,841,567.78
  6. Step 6: Final answer
    x = 20,762,351.67

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Similar ratio
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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.