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Finding the Fourth Proportional to 9,985,501.80, 14,978,252.70 and 5,954,423.40

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Solution

The fourth proportional to 9,985,501.80, 14,978,252.70 and 5,954,423.40 is: 8,931,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985,501.80 : 14,978,252.70 = 5,954,423.40 : x
  2. Step 2: Convert to fraction form
    9,985,501.80/14,978,252.70 = 5,954,423.40/x
  3. Step 3: Cross multiply
    9,985,501.80x = 14,978,252.70 × 5,954,423.40
  4. Step 4: Simplify right side
    9,985,501.80x = 89,186,858,367,993.19
  5. Step 5: Solve for x
    x = 89,186,858,367,993.19/9,985,501.80
  6. Step 6: Final answer
    x = 8,931,635.10

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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.