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Finding the Fourth Proportional to 48,673.30, 73,009.95 and 13,612.90

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Solution

The fourth proportional to 48,673.30, 73,009.95 and 13,612.90 is: 20,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,673.30 : 73,009.95 = 13,612.90 : x
  2. Step 2: Convert to fraction form
    48,673.30/73,009.95 = 13,612.90/x
  3. Step 3: Cross multiply
    48,673.30x = 73,009.95 × 13,612.90
  4. Step 4: Simplify right side
    48,673.30x = 993,877,148.36
  5. Step 5: Solve for x
    x = 993,877,148.36/48,673.30
  6. Step 6: Final answer
    x = 20,419.35

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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.