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Finding the Fourth Proportional to 22,890,289.60, 34,335,434.40 and 21,136,534.30

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Solution

The fourth proportional to 22,890,289.60, 34,335,434.40 and 21,136,534.30 is: 31,704,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,890,289.60 : 34,335,434.40 = 21,136,534.30 : x
  2. Step 2: Convert to fraction form
    22,890,289.60/34,335,434.40 = 21,136,534.30/x
  3. Step 3: Cross multiply
    22,890,289.60x = 34,335,434.40 × 21,136,534.30
  4. Step 4: Simplify right side
    22,890,289.60x = 725,732,086,900,999.88
  5. Step 5: Solve for x
    x = 725,732,086,900,999.88/22,890,289.60
  6. Step 6: Final answer
    x = 31,704,801.45

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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.