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Finding the Fourth Proportional to 47,247.32, 70,866.64 and 14,415.32

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Solution

The fourth proportional to 47,247.32, 70,866.64 and 14,415.32 is: 21,621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,247.32 : 70,866.64 = 14,415.32 : x
  2. Step 2: Convert to fraction form
    47,247.32/70,866.64 = 14,415.32/x
  3. Step 3: Cross multiply
    47,247.32x = 70,866.64 × 14,415.32
  4. Step 4: Simplify right side
    47,247.32x = 1,021,565,292.92
  5. Step 5: Solve for x
    x = 1,021,565,292.92/47,247.32
  6. Step 6: Final answer
    x = 21,621.66

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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.