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Finding the Fourth Proportional to 30,618.80, 45,863.40 and 24,009.20

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Solution

The fourth proportional to 30,618.80, 45,863.40 and 24,009.20 is: 35,962.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.80 : 45,863.40 = 24,009.20 : x
  2. Step 2: Convert to fraction form
    30,618.80/45,863.40 = 24,009.20/x
  3. Step 3: Cross multiply
    30,618.80x = 45,863.40 × 24,009.20
  4. Step 4: Simplify right side
    30,618.80x = 1,101,143,543.28
  5. Step 5: Solve for x
    x = 1,101,143,543.28/30,618.80
  6. Step 6: Final answer
    x = 35,962.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.