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Finding the Fourth Proportional to 67,235.51, 100,852.56 and 17,315.40

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Solution

The fourth proportional to 67,235.51, 100,852.56 and 17,315.40 is: 25,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,235.51 : 100,852.56 = 17,315.40 : x
  2. Step 2: Convert to fraction form
    67,235.51/100,852.56 = 17,315.40/x
  3. Step 3: Cross multiply
    67,235.51x = 100,852.56 × 17,315.40
  4. Step 4: Simplify right side
    67,235.51x = 1,746,302,417.42
  5. Step 5: Solve for x
    x = 1,746,302,417.42/67,235.51
  6. Step 6: Final answer
    x = 25,972.92

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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.