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Finding the Fourth Proportional to 10,782.30, 14,878.95 and 6,066.30

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Solution

The fourth proportional to 10,782.30, 14,878.95 and 6,066.30 is: 8,371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.30 : 14,878.95 = 6,066.30 : x
  2. Step 2: Convert to fraction form
    10,782.30/14,878.95 = 6,066.30/x
  3. Step 3: Cross multiply
    10,782.30x = 14,878.95 × 6,066.30
  4. Step 4: Simplify right side
    10,782.30x = 90,260,174.39
  5. Step 5: Solve for x
    x = 90,260,174.39/10,782.30
  6. Step 6: Final answer
    x = 8,371.14

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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.