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Finding the Fourth Proportional to 9,060.40, 12,502.78 and 5,081.48

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Solution

The fourth proportional to 9,060.40, 12,502.78 and 5,081.48 is: 7,012.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,060.40 : 12,502.78 = 5,081.48 : x
  2. Step 2: Convert to fraction form
    9,060.40/12,502.78 = 5,081.48/x
  3. Step 3: Cross multiply
    9,060.40x = 12,502.78 × 5,081.48
  4. Step 4: Simplify right side
    9,060.40x = 63,532,626.51
  5. Step 5: Solve for x
    x = 63,532,626.51/9,060.40
  6. Step 6: Final answer
    x = 7,012.12

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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.