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Finding the Fourth Proportional to 7,174,611.80, 10,762,573.80 and 2,913,898.40

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Solution

The fourth proportional to 7,174,611.80, 10,762,573.80 and 2,913,898.40 is: 4,371,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174,611.80 : 10,762,573.80 = 2,913,898.40 : x
  2. Step 2: Convert to fraction form
    7,174,611.80/10,762,573.80 = 2,913,898.40/x
  3. Step 3: Cross multiply
    7,174,611.80x = 10,762,573.80 × 2,913,898.40
  4. Step 4: Simplify right side
    7,174,611.80x = 31,361,046,575,701.92
  5. Step 5: Solve for x
    x = 31,361,046,575,701.92/7,174,611.80
  6. Step 6: Final answer
    x = 4,371,114.07

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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.