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Finding the Fourth Proportional to 3,887,700.85, 5,831,157.54 and 1,048,100.05

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Solution

The fourth proportional to 3,887,700.85, 5,831,157.54 and 1,048,100.05 is: 1,572,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,700.85 : 5,831,157.54 = 1,048,100.05 : x
  2. Step 2: Convert to fraction form
    3,887,700.85/5,831,157.54 = 1,048,100.05/x
  3. Step 3: Cross multiply
    3,887,700.85x = 5,831,157.54 × 1,048,100.05
  4. Step 4: Simplify right side
    3,887,700.85x = 6,111,636,480,076.09
  5. Step 5: Solve for x
    x = 6,111,636,480,076.09/3,887,700.85
  6. Step 6: Final answer
    x = 1,572,043.92

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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.