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Finding the Fourth Proportional to 9,841,985.40, 14,762,978.10 and 8,472,048.60

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Solution

The fourth proportional to 9,841,985.40, 14,762,978.10 and 8,472,048.60 is: 12,708,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,841,985.40 : 14,762,978.10 = 8,472,048.60 : x
  2. Step 2: Convert to fraction form
    9,841,985.40/14,762,978.10 = 8,472,048.60/x
  3. Step 3: Cross multiply
    9,841,985.40x = 14,762,978.10 × 8,472,048.60
  4. Step 4: Simplify right side
    9,841,985.40x = 125,072,667,943,935.66
  5. Step 5: Solve for x
    x = 125,072,667,943,935.66/9,841,985.40
  6. Step 6: Final answer
    x = 12,708,072.90

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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.