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Finding the Fourth Proportional to 48,267.70, 72,401.55 and 13,210.90

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Solution

The fourth proportional to 48,267.70, 72,401.55 and 13,210.90 is: 19,816.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,267.70 : 72,401.55 = 13,210.90 : x
  2. Step 2: Convert to fraction form
    48,267.70/72,401.55 = 13,210.90/x
  3. Step 3: Cross multiply
    48,267.70x = 72,401.55 × 13,210.90
  4. Step 4: Simplify right side
    48,267.70x = 956,489,636.90
  5. Step 5: Solve for x
    x = 956,489,636.90/48,267.70
  6. Step 6: Final answer
    x = 19,816.35

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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.