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Finding the Fourth Proportional to 48,605.40, 72,908.10 and 48,298.20

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Solution

The fourth proportional to 48,605.40, 72,908.10 and 48,298.20 is: 72,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,605.40 : 72,908.10 = 48,298.20 : x
  2. Step 2: Convert to fraction form
    48,605.40/72,908.10 = 48,298.20/x
  3. Step 3: Cross multiply
    48,605.40x = 72,908.10 × 48,298.20
  4. Step 4: Simplify right side
    48,605.40x = 3,521,329,995.42
  5. Step 5: Solve for x
    x = 3,521,329,995.42/48,605.40
  6. Step 6: Final answer
    x = 72,447.30

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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.