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Finding the Fourth Proportional to 10,652,101.76, 15,978,269.28 and 3,079,133.12

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Solution

The fourth proportional to 10,652,101.76, 15,978,269.28 and 3,079,133.12 is: 4,618,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,652,101.76 : 15,978,269.28 = 3,079,133.12 : x
  2. Step 2: Convert to fraction form
    10,652,101.76/15,978,269.28 = 3,079,133.12/x
  3. Step 3: Cross multiply
    10,652,101.76x = 15,978,269.28 × 3,079,133.12
  4. Step 4: Simplify right side
    10,652,101.76x = 49,199,218,140,326.55
  5. Step 5: Solve for x
    x = 49,199,218,140,326.55/10,652,101.76
  6. Step 6: Final answer
    x = 4,618,733.40

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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.