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Finding the Fourth Proportional to 7,007.60, 9,670.13 and 4,354.95

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Solution

The fourth proportional to 7,007.60, 9,670.13 and 4,354.95 is: 6,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.60 : 9,670.13 = 4,354.95 : x
  2. Step 2: Convert to fraction form
    7,007.60/9,670.13 = 4,354.95/x
  3. Step 3: Cross multiply
    7,007.60x = 9,670.13 × 4,354.95
  4. Step 4: Simplify right side
    7,007.60x = 42,112,910.87
  5. Step 5: Solve for x
    x = 42,112,910.87/7,007.60
  6. Step 6: Final answer
    x = 6,009.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.