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Finding the Fourth Proportional to 47,296.61, 70,913.13 and 18,814.69

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Solution

The fourth proportional to 47,296.61, 70,913.13 and 18,814.69 is: 28,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,296.61 : 70,913.13 = 18,814.69 : x
  2. Step 2: Convert to fraction form
    47,296.61/70,913.13 = 18,814.69/x
  3. Step 3: Cross multiply
    47,296.61x = 70,913.13 × 18,814.69
  4. Step 4: Simplify right side
    47,296.61x = 1,334,208,807.98
  5. Step 5: Solve for x
    x = 1,334,208,807.98/47,296.61
  6. Step 6: Final answer
    x = 28,209.40

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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.