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Finding the Fourth Proportional to 15,271.95, 22,907.97 and 5,411.52

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Solution

The fourth proportional to 15,271.95, 22,907.97 and 5,411.52 is: 8,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271.95 : 22,907.97 = 5,411.52 : x
  2. Step 2: Convert to fraction form
    15,271.95/22,907.97 = 5,411.52/x
  3. Step 3: Cross multiply
    15,271.95x = 22,907.97 × 5,411.52
  4. Step 4: Simplify right side
    15,271.95x = 123,966,937.81
  5. Step 5: Solve for x
    x = 123,966,937.81/15,271.95
  6. Step 6: Final answer
    x = 8,117.30

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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.