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Finding the Fourth Proportional to 34,607.60, 51,892.20 and 13,807.60

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Solution

The fourth proportional to 34,607.60, 51,892.20 and 13,807.60 is: 20,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,607.60 : 51,892.20 = 13,807.60 : x
  2. Step 2: Convert to fraction form
    34,607.60/51,892.20 = 13,807.60/x
  3. Step 3: Cross multiply
    34,607.60x = 51,892.20 × 13,807.60
  4. Step 4: Simplify right side
    34,607.60x = 716,506,740.72
  5. Step 5: Solve for x
    x = 716,506,740.72/34,607.60
  6. Step 6: Final answer
    x = 20,703.74

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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.