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Finding the Fourth Proportional to 8,875.98, 13,314.74 and 2,951.64

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Solution

The fourth proportional to 8,875.98, 13,314.74 and 2,951.64 is: 4,427.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.98 : 13,314.74 = 2,951.64 : x
  2. Step 2: Convert to fraction form
    8,875.98/13,314.74 = 2,951.64/x
  3. Step 3: Cross multiply
    8,875.98x = 13,314.74 × 2,951.64
  4. Step 4: Simplify right side
    8,875.98x = 39,300,319.17
  5. Step 5: Solve for x
    x = 39,300,319.17/8,875.98
  6. Step 6: Final answer
    x = 4,427.72

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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.