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Finding the Fourth Proportional to 35,387.52, 53,081.28 and 12,014.16

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Solution

The fourth proportional to 35,387.52, 53,081.28 and 12,014.16 is: 18,021.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,387.52 : 53,081.28 = 12,014.16 : x
  2. Step 2: Convert to fraction form
    35,387.52/53,081.28 = 12,014.16/x
  3. Step 3: Cross multiply
    35,387.52x = 53,081.28 × 12,014.16
  4. Step 4: Simplify right side
    35,387.52x = 637,726,990.92
  5. Step 5: Solve for x
    x = 637,726,990.92/35,387.52
  6. Step 6: Final answer
    x = 18,021.24

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Similar ratio
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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.