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Finding the Fourth Proportional to 29,789,420.40, 44,684,130.60 and 28,403,737.20

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Solution

The fourth proportional to 29,789,420.40, 44,684,130.60 and 28,403,737.20 is: 42,605,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,789,420.40 : 44,684,130.60 = 28,403,737.20 : x
  2. Step 2: Convert to fraction form
    29,789,420.40/44,684,130.60 = 28,403,737.20/x
  3. Step 3: Cross multiply
    29,789,420.40x = 44,684,130.60 × 28,403,737.20
  4. Step 4: Simplify right side
    29,789,420.40x = 1,269,196,302,572,878.25
  5. Step 5: Solve for x
    x = 1,269,196,302,572,878.25/29,789,420.40
  6. Step 6: Final answer
    x = 42,605,605.80

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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.