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Finding the Fourth Proportional to 9,865,101.60, 14,783,655.60 and 7,286,191.20

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Solution

The fourth proportional to 9,865,101.60, 14,783,655.60 and 7,286,191.20 is: 10,918,949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865,101.60 : 14,783,655.60 = 7,286,191.20 : x
  2. Step 2: Convert to fraction form
    9,865,101.60/14,783,655.60 = 7,286,191.20/x
  3. Step 3: Cross multiply
    9,865,101.60x = 14,783,655.60 × 7,286,191.20
  4. Step 4: Simplify right side
    9,865,101.60x = 107,716,541,336,550.72
  5. Step 5: Solve for x
    x = 107,716,541,336,550.72/9,865,101.60
  6. Step 6: Final answer
    x = 10,918,949.01

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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.