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Finding the Fourth Proportional to 5,648,981.70, 8,473,472.55 and 1,861,551.30

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Solution

The fourth proportional to 5,648,981.70, 8,473,472.55 and 1,861,551.30 is: 2,792,326.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648,981.70 : 8,473,472.55 = 1,861,551.30 : x
  2. Step 2: Convert to fraction form
    5,648,981.70/8,473,472.55 = 1,861,551.30/x
  3. Step 3: Cross multiply
    5,648,981.70x = 8,473,472.55 × 1,861,551.30
  4. Step 4: Simplify right side
    5,648,981.70x = 15,773,803,840,966.82
  5. Step 5: Solve for x
    x = 15,773,803,840,966.82/5,648,981.70
  6. Step 6: Final answer
    x = 2,792,326.95

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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.