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Finding the Fourth Proportional to 35,689.68, 53,543.03 and 12,316.32

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Solution

The fourth proportional to 35,689.68, 53,543.03 and 12,316.32 is: 18,477.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,689.68 : 53,543.03 = 12,316.32 : x
  2. Step 2: Convert to fraction form
    35,689.68/53,543.03 = 12,316.32/x
  3. Step 3: Cross multiply
    35,689.68x = 53,543.03 × 12,316.32
  4. Step 4: Simplify right side
    35,689.68x = 659,453,029.67
  5. Step 5: Solve for x
    x = 659,453,029.67/35,689.68
  6. Step 6: Final answer
    x = 18,477.42

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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.