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Finding the Fourth Proportional to 48,394.80, 72,592.64 and 13,336.40

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Solution

The fourth proportional to 48,394.80, 72,592.64 and 13,336.40 is: 20,004.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,394.80 : 72,592.64 = 13,336.40 : x
  2. Step 2: Convert to fraction form
    48,394.80/72,592.64 = 13,336.40/x
  3. Step 3: Cross multiply
    48,394.80x = 72,592.64 × 13,336.40
  4. Step 4: Simplify right side
    48,394.80x = 968,124,484.10
  5. Step 5: Solve for x
    x = 968,124,484.10/48,394.80
  6. Step 6: Final answer
    x = 20,004.72

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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.