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Finding the Fourth Proportional to 56,312.52, 84,484.72 and 28,198.63

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Solution

The fourth proportional to 56,312.52, 84,484.72 and 28,198.63 is: 42,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,312.52 : 84,484.72 = 28,198.63 : x
  2. Step 2: Convert to fraction form
    56,312.52/84,484.72 = 28,198.63/x
  3. Step 3: Cross multiply
    56,312.52x = 84,484.72 × 28,198.63
  4. Step 4: Simplify right side
    56,312.52x = 2,382,353,500.79
  5. Step 5: Solve for x
    x = 2,382,353,500.79/56,312.52
  6. Step 6: Final answer
    x = 42,305.93

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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.