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Finding the Fourth Proportional to 15,030.68, 22,548.86 and 4,640

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Solution

The fourth proportional to 15,030.68, 22,548.86 and 4,640 is: 6,960.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.68 : 22,548.86 = 4,640 : x
  2. Step 2: Convert to fraction form
    15,030.68/22,548.86 = 4,640/x
  3. Step 3: Cross multiply
    15,030.68x = 22,548.86 × 4,640
  4. Step 4: Simplify right side
    15,030.68x = 104,626,687.20
  5. Step 5: Solve for x
    x = 104,626,687.20/15,030.68
  6. Step 6: Final answer
    x = 6,960.88

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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.