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Finding the Fourth Proportional to 32,403.70, 48,495.78 and 19,931.64

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Solution

The fourth proportional to 32,403.70, 48,495.78 and 19,931.64 is: 29,829.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,403.70 : 48,495.78 = 19,931.64 : x
  2. Step 2: Convert to fraction form
    32,403.70/48,495.78 = 19,931.64/x
  3. Step 3: Cross multiply
    32,403.70x = 48,495.78 × 19,931.64
  4. Step 4: Simplify right side
    32,403.70x = 966,600,428.48
  5. Step 5: Solve for x
    x = 966,600,428.48/32,403.70
  6. Step 6: Final answer
    x = 29,829.94

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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.