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Finding the Fourth Proportional to 19,652,648.80, 29,478,973.20 and 16,464,002.80

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Solution

The fourth proportional to 19,652,648.80, 29,478,973.20 and 16,464,002.80 is: 24,696,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,652,648.80 : 29,478,973.20 = 16,464,002.80 : x
  2. Step 2: Convert to fraction form
    19,652,648.80/29,478,973.20 = 16,464,002.80/x
  3. Step 3: Cross multiply
    19,652,648.80x = 29,478,973.20 × 16,464,002.80
  4. Step 4: Simplify right side
    19,652,648.80x = 485,341,897,305,925
  5. Step 5: Solve for x
    x = 485,341,897,305,925/19,652,648.80
  6. Step 6: Final answer
    x = 24,696,004.20

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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.