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Finding the Fourth Proportional to 19,893,408, 29,840,112 and 6,430,236

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Solution

The fourth proportional to 19,893,408, 29,840,112 and 6,430,236 is: 9,645,354

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,893,408 : 29,840,112 = 6,430,236 : x
  2. Step 2: Convert to fraction form
    19,893,408/29,840,112 = 6,430,236/x
  3. Step 3: Cross multiply
    19,893,408x = 29,840,112 × 6,430,236
  4. Step 4: Simplify right side
    19,893,408x = 191,878,962,426,432
  5. Step 5: Solve for x
    x = 191,878,962,426,432/19,893,408
  6. Step 6: Final answer
    x = 9,645,354

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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.