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Finding the Fourth Proportional to 49,953, 74,929.50 and 13,017

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Solution

The fourth proportional to 49,953, 74,929.50 and 13,017 is: 19,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,953 : 74,929.50 = 13,017 : x
  2. Step 2: Convert to fraction form
    49,953/74,929.50 = 13,017/x
  3. Step 3: Cross multiply
    49,953x = 74,929.50 × 13,017
  4. Step 4: Simplify right side
    49,953x = 975,357,301.50
  5. Step 5: Solve for x
    x = 975,357,301.50/49,953
  6. Step 6: Final answer
    x = 19,525.50

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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.