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Finding the Fourth Proportional to 37,486.40, 56,229.60 and 21,718.40

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Solution

The fourth proportional to 37,486.40, 56,229.60 and 21,718.40 is: 32,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,486.40 : 56,229.60 = 21,718.40 : x
  2. Step 2: Convert to fraction form
    37,486.40/56,229.60 = 21,718.40/x
  3. Step 3: Cross multiply
    37,486.40x = 56,229.60 × 21,718.40
  4. Step 4: Simplify right side
    37,486.40x = 1,221,216,944.64
  5. Step 5: Solve for x
    x = 1,221,216,944.64/37,486.40
  6. Step 6: Final answer
    x = 32,577.60

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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.