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Finding the Fourth Proportional to 9,968,806.80, 14,952,432.60 and 3,902,360.40

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Solution

The fourth proportional to 9,968,806.80, 14,952,432.60 and 3,902,360.40 is: 5,853,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,968,806.80 : 14,952,432.60 = 3,902,360.40 : x
  2. Step 2: Convert to fraction form
    9,968,806.80/14,952,432.60 = 3,902,360.40/x
  3. Step 3: Cross multiply
    9,968,806.80x = 14,952,432.60 × 3,902,360.40
  4. Step 4: Simplify right side
    9,968,806.80x = 58,349,780,861,909.04
  5. Step 5: Solve for x
    x = 58,349,780,861,909.04/9,968,806.80
  6. Step 6: Final answer
    x = 5,853,236.20

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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.