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Finding the Fourth Proportional to 21,337.60, 32,006.40 and 20,041.60

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Solution

The fourth proportional to 21,337.60, 32,006.40 and 20,041.60 is: 30,062.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.60 : 32,006.40 = 20,041.60 : x
  2. Step 2: Convert to fraction form
    21,337.60/32,006.40 = 20,041.60/x
  3. Step 3: Cross multiply
    21,337.60x = 32,006.40 × 20,041.60
  4. Step 4: Simplify right side
    21,337.60x = 641,459,466.24
  5. Step 5: Solve for x
    x = 641,459,466.24/21,337.60
  6. Step 6: Final answer
    x = 30,062.40

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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.