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Finding the Fourth Proportional to 39,143.16, 58,714.54 and 9,561.16

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Solution

The fourth proportional to 39,143.16, 58,714.54 and 9,561.16 is: 14,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143.16 : 58,714.54 = 9,561.16 : x
  2. Step 2: Convert to fraction form
    39,143.16/58,714.54 = 9,561.16/x
  3. Step 3: Cross multiply
    39,143.16x = 58,714.54 × 9,561.16
  4. Step 4: Simplify right side
    39,143.16x = 561,379,111.27
  5. Step 5: Solve for x
    x = 561,379,111.27/39,143.16
  6. Step 6: Final answer
    x = 14,341.69

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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.