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Finding the Fourth Proportional to 9,774.74, 13,488.30 and 5,526.20

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Solution

The fourth proportional to 9,774.74, 13,488.30 and 5,526.20 is: 7,625.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,774.74 : 13,488.30 = 5,526.20 : x
  2. Step 2: Convert to fraction form
    9,774.74/13,488.30 = 5,526.20/x
  3. Step 3: Cross multiply
    9,774.74x = 13,488.30 × 5,526.20
  4. Step 4: Simplify right side
    9,774.74x = 74,538,976.02
  5. Step 5: Solve for x
    x = 74,538,976.02/9,774.74
  6. Step 6: Final answer
    x = 7,625.68

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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.