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Finding the Fourth Proportional to 9,903.16, 14,835.60 and 5,507.32

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Solution

The fourth proportional to 9,903.16, 14,835.60 and 5,507.32 is: 8,250.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.16 : 14,835.60 = 5,507.32 : x
  2. Step 2: Convert to fraction form
    9,903.16/14,835.60 = 5,507.32/x
  3. Step 3: Cross multiply
    9,903.16x = 14,835.60 × 5,507.32
  4. Step 4: Simplify right side
    9,903.16x = 81,704,396.59
  5. Step 5: Solve for x
    x = 81,704,396.59/9,903.16
  6. Step 6: Final answer
    x = 8,250.34

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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.