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Finding the Fourth Proportional to 35,159.70, 52,705.62 and 12,960.93

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Solution

The fourth proportional to 35,159.70, 52,705.62 and 12,960.93 is: 19,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,159.70 : 52,705.62 = 12,960.93 : x
  2. Step 2: Convert to fraction form
    35,159.70/52,705.62 = 12,960.93/x
  3. Step 3: Cross multiply
    35,159.70x = 52,705.62 × 12,960.93
  4. Step 4: Simplify right side
    35,159.70x = 683,113,851.43
  5. Step 5: Solve for x
    x = 683,113,851.43/35,159.70
  6. Step 6: Final answer
    x = 19,428.89

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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.