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Finding the Fourth Proportional to 32,572.80, 44,971.20 and 20,001.60

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Solution

The fourth proportional to 32,572.80, 44,971.20 and 20,001.60 is: 27,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,572.80 : 44,971.20 = 20,001.60 : x
  2. Step 2: Convert to fraction form
    32,572.80/44,971.20 = 20,001.60/x
  3. Step 3: Cross multiply
    32,572.80x = 44,971.20 × 20,001.60
  4. Step 4: Simplify right side
    32,572.80x = 899,495,953.92
  5. Step 5: Solve for x
    x = 899,495,953.92/32,572.80
  6. Step 6: Final answer
    x = 27,614.94

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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.