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Finding the Fourth Proportional to 9,774.48, 13,485.24 and 6,239.28

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Solution

The fourth proportional to 9,774.48, 13,485.24 and 6,239.28 is: 8,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,774.48 : 13,485.24 = 6,239.28 : x
  2. Step 2: Convert to fraction form
    9,774.48/13,485.24 = 6,239.28/x
  3. Step 3: Cross multiply
    9,774.48x = 13,485.24 × 6,239.28
  4. Step 4: Simplify right side
    9,774.48x = 84,138,188.23
  5. Step 5: Solve for x
    x = 84,138,188.23/9,774.48
  6. Step 6: Final answer
    x = 8,607.95

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1.5x scale

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.