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Finding the Fourth Proportional to 35,925.32, 53,912.64 and 12,551.78

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Solution

The fourth proportional to 35,925.32, 53,912.64 and 12,551.78 is: 18,836.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,925.32 : 53,912.64 = 12,551.78 : x
  2. Step 2: Convert to fraction form
    35,925.32/53,912.64 = 12,551.78/x
  3. Step 3: Cross multiply
    35,925.32x = 53,912.64 × 12,551.78
  4. Step 4: Simplify right side
    35,925.32x = 676,699,596.50
  5. Step 5: Solve for x
    x = 676,699,596.50/35,925.32
  6. Step 6: Final answer
    x = 18,836.29

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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.