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Finding the Fourth Proportional to 32,618.74, 45,013.74 and 18,472.90

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Solution

The fourth proportional to 32,618.74, 45,013.74 and 18,472.90 is: 25,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,618.74 : 45,013.74 = 18,472.90 : x
  2. Step 2: Convert to fraction form
    32,618.74/45,013.74 = 18,472.90/x
  3. Step 3: Cross multiply
    32,618.74x = 45,013.74 × 18,472.90
  4. Step 4: Simplify right side
    32,618.74x = 831,534,317.65
  5. Step 5: Solve for x
    x = 831,534,317.65/32,618.74
  6. Step 6: Final answer
    x = 25,492.53

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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.