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Finding the Fourth Proportional to 29,490.19, 40,698.17 and 22,209.25

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Solution

The fourth proportional to 29,490.19, 40,698.17 and 22,209.25 is: 30,650.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,490.19 : 40,698.17 = 22,209.25 : x
  2. Step 2: Convert to fraction form
    29,490.19/40,698.17 = 22,209.25/x
  3. Step 3: Cross multiply
    29,490.19x = 40,698.17 × 22,209.25
  4. Step 4: Simplify right side
    29,490.19x = 903,875,832.07
  5. Step 5: Solve for x
    x = 903,875,832.07/29,490.19
  6. Step 6: Final answer
    x = 30,650.05

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Half scale
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Double 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.