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Finding the Fourth Proportional to 8,842.16, 12,201.64 and 5,307.32

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Solution

The fourth proportional to 8,842.16, 12,201.64 and 5,307.32 is: 7,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842.16 : 12,201.64 = 5,307.32 : x
  2. Step 2: Convert to fraction form
    8,842.16/12,201.64 = 5,307.32/x
  3. Step 3: Cross multiply
    8,842.16x = 12,201.64 × 5,307.32
  4. Step 4: Simplify right side
    8,842.16x = 64,758,025.24
  5. Step 5: Solve for x
    x = 64,758,025.24/8,842.16
  6. Step 6: Final answer
    x = 7,323.78

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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.