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Finding the Fourth Proportional to 9,903.92, 14,838.08 and 5,740.40

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Solution

The fourth proportional to 9,903.92, 14,838.08 and 5,740.40 is: 8,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.92 : 14,838.08 = 5,740.40 : x
  2. Step 2: Convert to fraction form
    9,903.92/14,838.08 = 5,740.40/x
  3. Step 3: Cross multiply
    9,903.92x = 14,838.08 × 5,740.40
  4. Step 4: Simplify right side
    9,903.92x = 85,176,514.43
  5. Step 5: Solve for x
    x = 85,176,514.43/9,903.92
  6. Step 6: Final answer
    x = 8,600.28

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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.