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Finding the Fourth Proportional to 7,653.12, 10,560.00 and 4,815.55

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Solution

The fourth proportional to 7,653.12, 10,560.00 and 4,815.55 is: 6,644.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.12 : 10,560.00 = 4,815.55 : x
  2. Step 2: Convert to fraction form
    7,653.12/10,560.00 = 4,815.55/x
  3. Step 3: Cross multiply
    7,653.12x = 10,560.00 × 4,815.55
  4. Step 4: Simplify right side
    7,653.12x = 50,852,239.26
  5. Step 5: Solve for x
    x = 50,852,239.26/7,653.12
  6. Step 6: Final answer
    x = 6,644.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.