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Finding the Fourth Proportional to 35,954.22, 53,931.51 and 12,580.68

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Solution

The fourth proportional to 35,954.22, 53,931.51 and 12,580.68 is: 18,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,954.22 : 53,931.51 = 12,580.68 : x
  2. Step 2: Convert to fraction form
    35,954.22/53,931.51 = 12,580.68/x
  3. Step 3: Cross multiply
    35,954.22x = 53,931.51 × 12,580.68
  4. Step 4: Simplify right side
    35,954.22x = 678,495,069.23
  5. Step 5: Solve for x
    x = 678,495,069.23/35,954.22
  6. Step 6: Final answer
    x = 18,871.08

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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.