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Finding the Fourth Proportional to 32,505.78, 48,718.80 and 18,477.57

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Solution

The fourth proportional to 32,505.78, 48,718.80 and 18,477.57 is: 27,693.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,505.78 : 48,718.80 = 18,477.57 : x
  2. Step 2: Convert to fraction form
    32,505.78/48,718.80 = 18,477.57/x
  3. Step 3: Cross multiply
    32,505.78x = 48,718.80 × 18,477.57
  4. Step 4: Simplify right side
    32,505.78x = 900,205,037.32
  5. Step 5: Solve for x
    x = 900,205,037.32/32,505.78
  6. Step 6: Final answer
    x = 27,693.69

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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.