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Finding the Fourth Proportional to 11,856.53, 17,779.53 and 6,308.70

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Solution

The fourth proportional to 11,856.53, 17,779.53 and 6,308.70 is: 9,460.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.53 : 17,779.53 = 6,308.70 : x
  2. Step 2: Convert to fraction form
    11,856.53/17,779.53 = 6,308.70/x
  3. Step 3: Cross multiply
    11,856.53x = 17,779.53 × 6,308.70
  4. Step 4: Simplify right side
    11,856.53x = 112,165,775.76
  5. Step 5: Solve for x
    x = 112,165,775.76/11,856.53
  6. Step 6: Final answer
    x = 9,460.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.