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Finding the Fourth Proportional to 8,364.16, 12,547.56 and 2,520.08

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Solution

The fourth proportional to 8,364.16, 12,547.56 and 2,520.08 is: 3,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.16 : 12,547.56 = 2,520.08 : x
  2. Step 2: Convert to fraction form
    8,364.16/12,547.56 = 2,520.08/x
  3. Step 3: Cross multiply
    8,364.16x = 12,547.56 × 2,520.08
  4. Step 4: Simplify right side
    8,364.16x = 31,620,855.00
  5. Step 5: Solve for x
    x = 31,620,855.00/8,364.16
  6. Step 6: Final answer
    x = 3,780.52

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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.