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Finding the Fourth Proportional to 9,878,487.63, 14,819,494.01 and 3,492,447.63

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Solution

The fourth proportional to 9,878,487.63, 14,819,494.01 and 3,492,447.63 is: 5,239,294.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,878,487.63 : 14,819,494.01 = 3,492,447.63 : x
  2. Step 2: Convert to fraction form
    9,878,487.63/14,819,494.01 = 3,492,447.63/x
  3. Step 3: Cross multiply
    9,878,487.63x = 14,819,494.01 × 3,492,447.63
  4. Step 4: Simplify right side
    9,878,487.63x = 51,756,306,715,561.46
  5. Step 5: Solve for x
    x = 51,756,306,715,561.46/9,878,487.63
  6. Step 6: Final answer
    x = 5,239,294.58

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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.