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Finding the Fourth Proportional to 8,978.04, 13,470.30 and 4,597.56

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Solution

The fourth proportional to 8,978.04, 13,470.30 and 4,597.56 is: 6,898.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,978.04 : 13,470.30 = 4,597.56 : x
  2. Step 2: Convert to fraction form
    8,978.04/13,470.30 = 4,597.56/x
  3. Step 3: Cross multiply
    8,978.04x = 13,470.30 × 4,597.56
  4. Step 4: Simplify right side
    8,978.04x = 61,930,512.47
  5. Step 5: Solve for x
    x = 61,930,512.47/8,978.04
  6. Step 6: Final answer
    x = 6,898.00

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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.