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Finding the Fourth Proportional to 17,566.40, 26,312.80 and 8,214.40

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Solution

The fourth proportional to 17,566.40, 26,312.80 and 8,214.40 is: 12,304.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,566.40 : 26,312.80 = 8,214.40 : x
  2. Step 2: Convert to fraction form
    17,566.40/26,312.80 = 8,214.40/x
  3. Step 3: Cross multiply
    17,566.40x = 26,312.80 × 8,214.40
  4. Step 4: Simplify right side
    17,566.40x = 216,143,864.32
  5. Step 5: Solve for x
    x = 216,143,864.32/17,566.40
  6. Step 6: Final answer
    x = 12,304.39

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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.