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Finding the Fourth Proportional to 35,007.80, 52,511.70 and 8,712.54

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Solution

The fourth proportional to 35,007.80, 52,511.70 and 8,712.54 is: 13,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,007.80 : 52,511.70 = 8,712.54 : x
  2. Step 2: Convert to fraction form
    35,007.80/52,511.70 = 8,712.54/x
  3. Step 3: Cross multiply
    35,007.80x = 52,511.70 × 8,712.54
  4. Step 4: Simplify right side
    35,007.80x = 457,509,980.60
  5. Step 5: Solve for x
    x = 457,509,980.60/35,007.80
  6. Step 6: Final answer
    x = 13,068.80

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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.