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Finding the Fourth Proportional to 43,345.70, 60,815.20 and 43,345.70

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Solution

The fourth proportional to 43,345.70, 60,815.20 and 43,345.70 is: 60,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,345.70 : 60,815.20 = 43,345.70 : x
  2. Step 2: Convert to fraction form
    43,345.70/60,815.20 = 43,345.70/x
  3. Step 3: Cross multiply
    43,345.70x = 60,815.20 × 43,345.70
  4. Step 4: Simplify right side
    43,345.70x = 2,636,077,414.64
  5. Step 5: Solve for x
    x = 2,636,077,414.64/43,345.70
  6. Step 6: Final answer
    x = 60,815.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.