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Finding the Fourth Proportional to 60,717, 91,075.56 and 19,164

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Solution

The fourth proportional to 60,717, 91,075.56 and 19,164 is: 28,746.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,717 : 91,075.56 = 19,164 : x
  2. Step 2: Convert to fraction form
    60,717/91,075.56 = 19,164/x
  3. Step 3: Cross multiply
    60,717x = 91,075.56 × 19,164
  4. Step 4: Simplify right side
    60,717x = 1,745,372,031.84
  5. Step 5: Solve for x
    x = 1,745,372,031.84/60,717
  6. Step 6: Final answer
    x = 28,746.02

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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.