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Finding the Fourth Proportional to 8,530.30, 11,779.08 and 5,348.94

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Solution

The fourth proportional to 8,530.30, 11,779.08 and 5,348.94 is: 7,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.30 : 11,779.08 = 5,348.94 : x
  2. Step 2: Convert to fraction form
    8,530.30/11,779.08 = 5,348.94/x
  3. Step 3: Cross multiply
    8,530.30x = 11,779.08 × 5,348.94
  4. Step 4: Simplify right side
    8,530.30x = 63,005,592.18
  5. Step 5: Solve for x
    x = 63,005,592.18/8,530.30
  6. Step 6: Final answer
    x = 7,386.09

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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.