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Finding the Fourth Proportional to 59,718.40, 82,404.48 and 40,883.20

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Solution

The fourth proportional to 59,718.40, 82,404.48 and 40,883.20 is: 56,414.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,718.40 : 82,404.48 = 40,883.20 : x
  2. Step 2: Convert to fraction form
    59,718.40/82,404.48 = 40,883.20/x
  3. Step 3: Cross multiply
    59,718.40x = 82,404.48 × 40,883.20
  4. Step 4: Simplify right side
    59,718.40x = 3,368,958,836.74
  5. Step 5: Solve for x
    x = 3,368,958,836.74/59,718.40
  6. Step 6: Final answer
    x = 56,414.08

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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.