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Finding the Fourth Proportional to 9,063.70, 12,503.06 and 5,285.49

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Solution

The fourth proportional to 9,063.70, 12,503.06 and 5,285.49 is: 7,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,063.70 : 12,503.06 = 5,285.49 : x
  2. Step 2: Convert to fraction form
    9,063.70/12,503.06 = 5,285.49/x
  3. Step 3: Cross multiply
    9,063.70x = 12,503.06 × 5,285.49
  4. Step 4: Simplify right side
    9,063.70x = 66,084,798.60
  5. Step 5: Solve for x
    x = 66,084,798.60/9,063.70
  6. Step 6: Final answer
    x = 7,291.15

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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.