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Finding the Fourth Proportional to 4,887,965.64, 6,745,465.95 and 2,712,649.68

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Solution

The fourth proportional to 4,887,965.64, 6,745,465.95 and 2,712,649.68 is: 3,743,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887,965.64 : 6,745,465.95 = 2,712,649.68 : x
  2. Step 2: Convert to fraction form
    4,887,965.64/6,745,465.95 = 2,712,649.68/x
  3. Step 3: Cross multiply
    4,887,965.64x = 6,745,465.95 × 2,712,649.68
  4. Step 4: Simplify right side
    4,887,965.64x = 18,298,086,050,718.40
  5. Step 5: Solve for x
    x = 18,298,086,050,718.40/4,887,965.64
  6. Step 6: Final answer
    x = 3,743,497.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.