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Finding the Fourth Proportional to 5,672,782.89, 8,509,248.05 and 1,886,265.63

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Solution

The fourth proportional to 5,672,782.89, 8,509,248.05 and 1,886,265.63 is: 2,829,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672,782.89 : 8,509,248.05 = 1,886,265.63 : x
  2. Step 2: Convert to fraction form
    5,672,782.89/8,509,248.05 = 1,886,265.63/x
  3. Step 3: Cross multiply
    5,672,782.89x = 8,509,248.05 × 1,886,265.63
  4. Step 4: Simplify right side
    5,672,782.89x = 16,050,702,124,428.19
  5. Step 5: Solve for x
    x = 16,050,702,124,428.19/5,672,782.89
  6. Step 6: Final answer
    x = 2,829,422.95

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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.