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Finding the Fourth Proportional to 39,585.60, 59,378.40 and 36,974.40

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Solution

The fourth proportional to 39,585.60, 59,378.40 and 36,974.40 is: 55,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,585.60 : 59,378.40 = 36,974.40 : x
  2. Step 2: Convert to fraction form
    39,585.60/59,378.40 = 36,974.40/x
  3. Step 3: Cross multiply
    39,585.60x = 59,378.40 × 36,974.40
  4. Step 4: Simplify right side
    39,585.60x = 2,195,480,712.96
  5. Step 5: Solve for x
    x = 2,195,480,712.96/39,585.60
  6. Step 6: Final answer
    x = 55,461.60

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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.