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Finding the Fourth Proportional to 9,774.30, 13,658.10 and 9,774.30

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Solution

The fourth proportional to 9,774.30, 13,658.10 and 9,774.30 is: 13,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,774.30 : 13,658.10 = 9,774.30 : x
  2. Step 2: Convert to fraction form
    9,774.30/13,658.10 = 9,774.30/x
  3. Step 3: Cross multiply
    9,774.30x = 13,658.10 × 9,774.30
  4. Step 4: Simplify right side
    9,774.30x = 133,498,366.83
  5. Step 5: Solve for x
    x = 133,498,366.83/9,774.30
  6. Step 6: Final answer
    x = 13,658.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.