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Finding the Fourth Proportional to 8,907.30, 13,365.52 and 3,646.20

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Solution

The fourth proportional to 8,907.30, 13,365.52 and 3,646.20 is: 5,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.30 : 13,365.52 = 3,646.20 : x
  2. Step 2: Convert to fraction form
    8,907.30/13,365.52 = 3,646.20/x
  3. Step 3: Cross multiply
    8,907.30x = 13,365.52 × 3,646.20
  4. Step 4: Simplify right side
    8,907.30x = 48,733,359.02
  5. Step 5: Solve for x
    x = 48,733,359.02/8,907.30
  6. Step 6: Final answer
    x = 5,471.17

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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.