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Finding the Fourth Proportional to 15,357.76, 23,043.12 and 7,566.64

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Solution

The fourth proportional to 15,357.76, 23,043.12 and 7,566.64 is: 11,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,357.76 : 23,043.12 = 7,566.64 : x
  2. Step 2: Convert to fraction form
    15,357.76/23,043.12 = 7,566.64/x
  3. Step 3: Cross multiply
    15,357.76x = 23,043.12 × 7,566.64
  4. Step 4: Simplify right side
    15,357.76x = 174,358,993.52
  5. Step 5: Solve for x
    x = 174,358,993.52/15,357.76
  6. Step 6: Final answer
    x = 11,353.15

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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.