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Finding the Fourth Proportional to 9,058.70, 12,500.89 and 5,079.74

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Solution

The fourth proportional to 9,058.70, 12,500.89 and 5,079.74 is: 7,009.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,058.70 : 12,500.89 = 5,079.74 : x
  2. Step 2: Convert to fraction form
    9,058.70/12,500.89 = 5,079.74/x
  3. Step 3: Cross multiply
    9,058.70x = 12,500.89 × 5,079.74
  4. Step 4: Simplify right side
    9,058.70x = 63,501,195.76
  5. Step 5: Solve for x
    x = 63,501,195.76/9,058.70
  6. Step 6: Final answer
    x = 7,009.97

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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.