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Finding the Fourth Proportional to 7,259.60, 10,867.80 and 4,343.60

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Solution

The fourth proportional to 7,259.60, 10,867.80 and 4,343.60 is: 6,502.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.60 : 10,867.80 = 4,343.60 : x
  2. Step 2: Convert to fraction form
    7,259.60/10,867.80 = 4,343.60/x
  3. Step 3: Cross multiply
    7,259.60x = 10,867.80 × 4,343.60
  4. Step 4: Simplify right side
    7,259.60x = 47,205,376.08
  5. Step 5: Solve for x
    x = 47,205,376.08/7,259.60
  6. Step 6: Final answer
    x = 6,502.48

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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.