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Finding the Fourth Proportional to 12,658.13, 17,470.35 and 7,356.01

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Solution

The fourth proportional to 12,658.13, 17,470.35 and 7,356.01 is: 10,152.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658.13 : 17,470.35 = 7,356.01 : x
  2. Step 2: Convert to fraction form
    12,658.13/17,470.35 = 7,356.01/x
  3. Step 3: Cross multiply
    12,658.13x = 17,470.35 × 7,356.01
  4. Step 4: Simplify right side
    12,658.13x = 128,512,069.30
  5. Step 5: Solve for x
    x = 128,512,069.30/12,658.13
  6. Step 6: Final answer
    x = 10,152.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.