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Finding the Fourth Proportional to 8,532.30, 11,773.75 and 5,130.30

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Solution

The fourth proportional to 8,532.30, 11,773.75 and 5,130.30 is: 7,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.30 : 11,773.75 = 5,130.30 : x
  2. Step 2: Convert to fraction form
    8,532.30/11,773.75 = 5,130.30/x
  3. Step 3: Cross multiply
    8,532.30x = 11,773.75 × 5,130.30
  4. Step 4: Simplify right side
    8,532.30x = 60,402,869.63
  5. Step 5: Solve for x
    x = 60,402,869.63/8,532.30
  6. Step 6: Final answer
    x = 7,079.32

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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.