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Finding the Fourth Proportional to 32,590.40, 48,885.60 and 20,926.40

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Solution

The fourth proportional to 32,590.40, 48,885.60 and 20,926.40 is: 31,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,590.40 : 48,885.60 = 20,926.40 : x
  2. Step 2: Convert to fraction form
    32,590.40/48,885.60 = 20,926.40/x
  3. Step 3: Cross multiply
    32,590.40x = 48,885.60 × 20,926.40
  4. Step 4: Simplify right side
    32,590.40x = 1,022,999,619.84
  5. Step 5: Solve for x
    x = 1,022,999,619.84/32,590.40
  6. Step 6: Final answer
    x = 31,389.60

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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.