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Finding the Fourth Proportional to 15,300.63, 22,931.51 and 6,985.17

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Solution

The fourth proportional to 15,300.63, 22,931.51 and 6,985.17 is: 10,468.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.63 : 22,931.51 = 6,985.17 : x
  2. Step 2: Convert to fraction form
    15,300.63/22,931.51 = 6,985.17/x
  3. Step 3: Cross multiply
    15,300.63x = 22,931.51 × 6,985.17
  4. Step 4: Simplify right side
    15,300.63x = 160,180,460.78
  5. Step 5: Solve for x
    x = 160,180,460.78/15,300.63
  6. Step 6: Final answer
    x = 10,468.88

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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.