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Finding the Fourth Proportional to 48,693.32, 67,197.63 and 28,564.71

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Solution

The fourth proportional to 48,693.32, 67,197.63 and 28,564.71 is: 39,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,693.32 : 67,197.63 = 28,564.71 : x
  2. Step 2: Convert to fraction form
    48,693.32/67,197.63 = 28,564.71/x
  3. Step 3: Cross multiply
    48,693.32x = 67,197.63 × 28,564.71
  4. Step 4: Simplify right side
    48,693.32x = 1,919,480,813.64
  5. Step 5: Solve for x
    x = 1,919,480,813.64/48,693.32
  6. Step 6: Final answer
    x = 39,419.80

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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.