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Finding the Fourth Proportional to 32,703.66, 45,129.69 and 18,557.28

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Solution

The fourth proportional to 32,703.66, 45,129.69 and 18,557.28 is: 25,608.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,703.66 : 45,129.69 = 18,557.28 : x
  2. Step 2: Convert to fraction form
    32,703.66/45,129.69 = 18,557.28/x
  3. Step 3: Cross multiply
    32,703.66x = 45,129.69 × 18,557.28
  4. Step 4: Simplify right side
    32,703.66x = 837,484,293.64
  5. Step 5: Solve for x
    x = 837,484,293.64/32,703.66
  6. Step 6: Final answer
    x = 25,608.27

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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.