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Finding the Fourth Proportional to 14,679,886.80, 22,019,830.20 and 14,092,021.20

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Solution

The fourth proportional to 14,679,886.80, 22,019,830.20 and 14,092,021.20 is: 21,138,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679,886.80 : 22,019,830.20 = 14,092,021.20 : x
  2. Step 2: Convert to fraction form
    14,679,886.80/22,019,830.20 = 14,092,021.20/x
  3. Step 3: Cross multiply
    14,679,886.80x = 22,019,830.20 × 14,092,021.20
  4. Step 4: Simplify right side
    14,679,886.80x = 310,303,913,998,800.19
  5. Step 5: Solve for x
    x = 310,303,913,998,800.19/14,679,886.80
  6. Step 6: Final answer
    x = 21,138,031.80

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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.