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Finding the Fourth Proportional to 11,045.70, 15,230.97 and 7,502.76

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Solution

The fourth proportional to 11,045.70, 15,230.97 and 7,502.76 is: 10,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,045.70 : 15,230.97 = 7,502.76 : x
  2. Step 2: Convert to fraction form
    11,045.70/15,230.97 = 7,502.76/x
  3. Step 3: Cross multiply
    11,045.70x = 15,230.97 × 7,502.76
  4. Step 4: Simplify right side
    11,045.70x = 114,274,312.48
  5. Step 5: Solve for x
    x = 114,274,312.48/11,045.70
  6. Step 6: Final answer
    x = 10,345.59

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Half scale
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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.