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Finding the Fourth Proportional to 9,841,978.80, 14,762,968.20 and 5,537,306.70

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Solution

The fourth proportional to 9,841,978.80, 14,762,968.20 and 5,537,306.70 is: 8,305,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,841,978.80 : 14,762,968.20 = 5,537,306.70 : x
  2. Step 2: Convert to fraction form
    9,841,978.80/14,762,968.20 = 5,537,306.70/x
  3. Step 3: Cross multiply
    9,841,978.80x = 14,762,968.20 × 5,537,306.70
  4. Step 4: Simplify right side
    9,841,978.80x = 81,747,082,725,746.94
  5. Step 5: Solve for x
    x = 81,747,082,725,746.94/9,841,978.80
  6. Step 6: Final answer
    x = 8,305,960.05

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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.