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Finding the Fourth Proportional to 9,675.91, 13,354.95 and 6,655.06

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Solution

The fourth proportional to 9,675.91, 13,354.95 and 6,655.06 is: 9,185.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,675.91 : 13,354.95 = 6,655.06 : x
  2. Step 2: Convert to fraction form
    9,675.91/13,354.95 = 6,655.06/x
  3. Step 3: Cross multiply
    9,675.91x = 13,354.95 × 6,655.06
  4. Step 4: Simplify right side
    9,675.91x = 88,877,993.55
  5. Step 5: Solve for x
    x = 88,877,993.55/9,675.91
  6. Step 6: Final answer
    x = 9,185.49

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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.