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Finding the Fourth Proportional to 9,859.88, 13,603.34 and 6,504.32

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Solution

The fourth proportional to 9,859.88, 13,603.34 and 6,504.32 is: 8,973.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,859.88 : 13,603.34 = 6,504.32 : x
  2. Step 2: Convert to fraction form
    9,859.88/13,603.34 = 6,504.32/x
  3. Step 3: Cross multiply
    9,859.88x = 13,603.34 × 6,504.32
  4. Step 4: Simplify right side
    9,859.88x = 88,480,476.43
  5. Step 5: Solve for x
    x = 88,480,476.43/9,859.88
  6. Step 6: Final answer
    x = 8,973.79

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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.