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Finding the Fourth Proportional to 12,332.80, 18,501.90 and 4,011.40

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Solution

The fourth proportional to 12,332.80, 18,501.90 and 4,011.40 is: 6,017.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,332.80 : 18,501.90 = 4,011.40 : x
  2. Step 2: Convert to fraction form
    12,332.80/18,501.90 = 4,011.40/x
  3. Step 3: Cross multiply
    12,332.80x = 18,501.90 × 4,011.40
  4. Step 4: Simplify right side
    12,332.80x = 74,218,521.66
  5. Step 5: Solve for x
    x = 74,218,521.66/12,332.80
  6. Step 6: Final answer
    x = 6,017.98

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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.