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Finding the Fourth Proportional to 9,077.55, 12,682.65 and 9,077.55

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Solution

The fourth proportional to 9,077.55, 12,682.65 and 9,077.55 is: 12,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,077.55 : 12,682.65 = 9,077.55 : x
  2. Step 2: Convert to fraction form
    9,077.55/12,682.65 = 9,077.55/x
  3. Step 3: Cross multiply
    9,077.55x = 12,682.65 × 9,077.55
  4. Step 4: Simplify right side
    9,077.55x = 115,127,389.51
  5. Step 5: Solve for x
    x = 115,127,389.51/9,077.55
  6. Step 6: Final answer
    x = 12,682.65

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.