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Finding the Fourth Proportional to 13,611,906,200.90, 20,417,859,301.35 and 13,611,906,200.90

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Solution

The fourth proportional to 13,611,906,200.90, 20,417,859,301.35 and 13,611,906,200.90 is: 20,417,859,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611,906,200.90 : 20,417,859,301.35 = 13,611,906,200.90 : x
  2. Step 2: Convert to fraction form
    13,611,906,200.90/20,417,859,301.35 = 13,611,906,200.90/x
  3. Step 3: Cross multiply
    13,611,906,200.90x = 20,417,859,301.35 × 13,611,906,200.90
  4. Step 4: Simplify right side
    13,611,906,200.90x = 277,925,985,633,149,779,968
  5. Step 5: Solve for x
    x = 277,925,985,633,149,779,968/13,611,906,200.90
  6. Step 6: Final answer
    x = 20,417,859,301.35

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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.