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Finding the Fourth Proportional to 32,248.32, 48,384.90 and 12,540.78

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Solution

The fourth proportional to 32,248.32, 48,384.90 and 12,540.78 is: 18,816.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,248.32 : 48,384.90 = 12,540.78 : x
  2. Step 2: Convert to fraction form
    32,248.32/48,384.90 = 12,540.78/x
  3. Step 3: Cross multiply
    32,248.32x = 48,384.90 × 12,540.78
  4. Step 4: Simplify right side
    32,248.32x = 606,784,386.22
  5. Step 5: Solve for x
    x = 606,784,386.22/32,248.32
  6. Step 6: Final answer
    x = 18,816.00

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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.