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Finding the Fourth Proportional to 9,063.71, 12,508.43 and 5,085.40

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Solution

The fourth proportional to 9,063.71, 12,508.43 and 5,085.40 is: 7,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,063.71 : 12,508.43 = 5,085.40 : x
  2. Step 2: Convert to fraction form
    9,063.71/12,508.43 = 5,085.40/x
  3. Step 3: Cross multiply
    9,063.71x = 12,508.43 × 5,085.40
  4. Step 4: Simplify right side
    9,063.71x = 63,610,336.68
  5. Step 5: Solve for x
    x = 63,610,336.68/9,063.71
  6. Step 6: Final answer
    x = 7,018.13

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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.