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Finding the Fourth Proportional to 47,015.66, 70,505.72 and 18,926.16

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Solution

The fourth proportional to 47,015.66, 70,505.72 and 18,926.16 is: 28,382.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,015.66 : 70,505.72 = 18,926.16 : x
  2. Step 2: Convert to fraction form
    47,015.66/70,505.72 = 18,926.16/x
  3. Step 3: Cross multiply
    47,015.66x = 70,505.72 × 18,926.16
  4. Step 4: Simplify right side
    47,015.66x = 1,334,402,537.64
  5. Step 5: Solve for x
    x = 1,334,402,537.64/47,015.66
  6. Step 6: Final answer
    x = 28,382.09

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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.