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Finding the Fourth Proportional to 58,640.42, 87,960.74 and 14,267.21

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Solution

The fourth proportional to 58,640.42, 87,960.74 and 14,267.21 is: 21,400.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,640.42 : 87,960.74 = 14,267.21 : x
  2. Step 2: Convert to fraction form
    58,640.42/87,960.74 = 14,267.21/x
  3. Step 3: Cross multiply
    58,640.42x = 87,960.74 × 14,267.21
  4. Step 4: Simplify right side
    58,640.42x = 1,254,953,838.20
  5. Step 5: Solve for x
    x = 1,254,953,838.20/58,640.42
  6. Step 6: Final answer
    x = 21,400.83

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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.