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Finding the Fourth Proportional to 6,499,711.72, 8,969,492.57 and 3,599,040.30

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Solution

The fourth proportional to 6,499,711.72, 8,969,492.57 and 3,599,040.30 is: 4,966,614.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,499,711.72 : 8,969,492.57 = 3,599,040.30 : x
  2. Step 2: Convert to fraction form
    6,499,711.72/8,969,492.57 = 3,599,040.30/x
  3. Step 3: Cross multiply
    6,499,711.72x = 8,969,492.57 × 3,599,040.30
  4. Step 4: Simplify right side
    6,499,711.72x = 32,281,565,211,985.37
  5. Step 5: Solve for x
    x = 32,281,565,211,985.37/6,499,711.72
  6. Step 6: Final answer
    x = 4,966,614.92

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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.