Home / 51,666.40-77,521.20-16,616.80

Finding the Fourth Proportional to 51,666.40, 77,521.20 and 16,616.80

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Solution

The fourth proportional to 51,666.40, 77,521.20 and 16,616.80 is: 24,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,666.40 : 77,521.20 = 16,616.80 : x
  2. Step 2: Convert to fraction form
    51,666.40/77,521.20 = 16,616.80/x
  3. Step 3: Cross multiply
    51,666.40x = 77,521.20 × 16,616.80
  4. Step 4: Simplify right side
    51,666.40x = 1,288,154,276.16
  5. Step 5: Solve for x
    x = 1,288,154,276.16/51,666.40
  6. Step 6: Final answer
    x = 24,932.15

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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.