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Finding the Fourth Proportional to 32,391.60, 48,587.40 and 13,959.60

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Solution

The fourth proportional to 32,391.60, 48,587.40 and 13,959.60 is: 20,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,391.60 : 48,587.40 = 13,959.60 : x
  2. Step 2: Convert to fraction form
    32,391.60/48,587.40 = 13,959.60/x
  3. Step 3: Cross multiply
    32,391.60x = 48,587.40 × 13,959.60
  4. Step 4: Simplify right side
    32,391.60x = 678,260,669.04
  5. Step 5: Solve for x
    x = 678,260,669.04/32,391.60
  6. Step 6: Final answer
    x = 20,939.40

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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.