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Finding the Fourth Proportional to 7,210.60, 9,951.60 and 4,558.68

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Solution

The fourth proportional to 7,210.60, 9,951.60 and 4,558.68 is: 6,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.60 : 9,951.60 = 4,558.68 : x
  2. Step 2: Convert to fraction form
    7,210.60/9,951.60 = 4,558.68/x
  3. Step 3: Cross multiply
    7,210.60x = 9,951.60 × 4,558.68
  4. Step 4: Simplify right side
    7,210.60x = 45,366,159.89
  5. Step 5: Solve for x
    x = 45,366,159.89/7,210.60
  6. Step 6: Final answer
    x = 6,291.59

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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.