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Finding the Fourth Proportional to 73,359, 110,038.50 and 17,955

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Solution

The fourth proportional to 73,359, 110,038.50 and 17,955 is: 26,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,359 : 110,038.50 = 17,955 : x
  2. Step 2: Convert to fraction form
    73,359/110,038.50 = 17,955/x
  3. Step 3: Cross multiply
    73,359x = 110,038.50 × 17,955
  4. Step 4: Simplify right side
    73,359x = 1,975,741,267.50
  5. Step 5: Solve for x
    x = 1,975,741,267.50/73,359
  6. Step 6: Final answer
    x = 26,932.50

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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.