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Finding the Fourth Proportional to 9,017.74, 12,444.74 and 5,039.30

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Solution

The fourth proportional to 9,017.74, 12,444.74 and 5,039.30 is: 6,954.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,017.74 : 12,444.74 = 5,039.30 : x
  2. Step 2: Convert to fraction form
    9,017.74/12,444.74 = 5,039.30/x
  3. Step 3: Cross multiply
    9,017.74x = 12,444.74 × 5,039.30
  4. Step 4: Simplify right side
    9,017.74x = 62,712,778.28
  5. Step 5: Solve for x
    x = 62,712,778.28/9,017.74
  6. Step 6: Final answer
    x = 6,954.38

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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.