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Finding the Fourth Proportional to 48,752.70, 73,129.05 and 13,698.30

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Solution

The fourth proportional to 48,752.70, 73,129.05 and 13,698.30 is: 20,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,752.70 : 73,129.05 = 13,698.30 : x
  2. Step 2: Convert to fraction form
    48,752.70/73,129.05 = 13,698.30/x
  3. Step 3: Cross multiply
    48,752.70x = 73,129.05 × 13,698.30
  4. Step 4: Simplify right side
    48,752.70x = 1,001,743,665.62
  5. Step 5: Solve for x
    x = 1,001,743,665.62/48,752.70
  6. Step 6: Final answer
    x = 20,547.45

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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.