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Finding the Fourth Proportional to 47,322.10, 70,913.02 and 19,207.94

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Solution

The fourth proportional to 47,322.10, 70,913.02 and 19,207.94 is: 28,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,322.10 : 70,913.02 = 19,207.94 : x
  2. Step 2: Convert to fraction form
    47,322.10/70,913.02 = 19,207.94/x
  3. Step 3: Cross multiply
    47,322.10x = 70,913.02 × 19,207.94
  4. Step 4: Simplify right side
    47,322.10x = 1,362,093,065.69
  5. Step 5: Solve for x
    x = 1,362,093,065.69/47,322.10
  6. Step 6: Final answer
    x = 28,783.45

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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.