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Finding the Fourth Proportional to 7,502.40, 10,353.94 and 4,358.40

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Solution

The fourth proportional to 7,502.40, 10,353.94 and 4,358.40 is: 6,014.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.40 : 10,353.94 = 4,358.40 : x
  2. Step 2: Convert to fraction form
    7,502.40/10,353.94 = 4,358.40/x
  3. Step 3: Cross multiply
    7,502.40x = 10,353.94 × 4,358.40
  4. Step 4: Simplify right side
    7,502.40x = 45,126,612.10
  5. Step 5: Solve for x
    x = 45,126,612.10/7,502.40
  6. Step 6: Final answer
    x = 6,014.96

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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.