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Finding the Fourth Proportional to 24,187.60, 36,281.40 and 20,904.40

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Solution

The fourth proportional to 24,187.60, 36,281.40 and 20,904.40 is: 31,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,187.60 : 36,281.40 = 20,904.40 : x
  2. Step 2: Convert to fraction form
    24,187.60/36,281.40 = 20,904.40/x
  3. Step 3: Cross multiply
    24,187.60x = 36,281.40 × 20,904.40
  4. Step 4: Simplify right side
    24,187.60x = 758,440,898.16
  5. Step 5: Solve for x
    x = 758,440,898.16/24,187.60
  6. Step 6: Final answer
    x = 31,356.60

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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.