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Finding the Fourth Proportional to 5,347,720.80, 8,018,038.80 and 2,952,712.80

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Solution

The fourth proportional to 5,347,720.80, 8,018,038.80 and 2,952,712.80 is: 4,427,113.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347,720.80 : 8,018,038.80 = 2,952,712.80 : x
  2. Step 2: Convert to fraction form
    5,347,720.80/8,018,038.80 = 2,952,712.80/x
  3. Step 3: Cross multiply
    5,347,720.80x = 8,018,038.80 × 2,952,712.80
  4. Step 4: Simplify right side
    5,347,720.80x = 23,674,965,795,656.64
  5. Step 5: Solve for x
    x = 23,674,965,795,656.64/5,347,720.80
  6. Step 6: Final answer
    x = 4,427,113.28

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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.