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Finding the Fourth Proportional to 8,874.30, 13,313.88 and 7,031.58

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Solution

The fourth proportional to 8,874.30, 13,313.88 and 7,031.58 is: 10,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.30 : 13,313.88 = 7,031.58 : x
  2. Step 2: Convert to fraction form
    8,874.30/13,313.88 = 7,031.58/x
  3. Step 3: Cross multiply
    8,874.30x = 13,313.88 × 7,031.58
  4. Step 4: Simplify right side
    8,874.30x = 93,617,612.33
  5. Step 5: Solve for x
    x = 93,617,612.33/8,874.30
  6. Step 6: Final answer
    x = 10,549.30

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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.