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Finding the Fourth Proportional to 12,413,779,528.20, 18,620,669,292.30 and 12,413,779,528.20

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Solution

The fourth proportional to 12,413,779,528.20, 18,620,669,292.30 and 12,413,779,528.20 is: 18,620,669,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413,779,528.20 : 18,620,669,292.30 = 12,413,779,528.20 : x
  2. Step 2: Convert to fraction form
    12,413,779,528.20/18,620,669,292.30 = 12,413,779,528.20/x
  3. Step 3: Cross multiply
    12,413,779,528.20x = 18,620,669,292.30 × 12,413,779,528.20
  4. Step 4: Simplify right side
    12,413,779,528.20x = 231,152,883,262,136,123,392
  5. Step 5: Solve for x
    x = 231,152,883,262,136,123,392/12,413,779,528.20
  6. Step 6: Final answer
    x = 18,620,669,292.30

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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.