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Finding the Fourth Proportional to 9,859.60, 14,782.20 and 4,013.20

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Solution

The fourth proportional to 9,859.60, 14,782.20 and 4,013.20 is: 6,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,859.60 : 14,782.20 = 4,013.20 : x
  2. Step 2: Convert to fraction form
    9,859.60/14,782.20 = 4,013.20/x
  3. Step 3: Cross multiply
    9,859.60x = 14,782.20 × 4,013.20
  4. Step 4: Simplify right side
    9,859.60x = 59,323,925.04
  5. Step 5: Solve for x
    x = 59,323,925.04/9,859.60
  6. Step 6: Final answer
    x = 6,016.87

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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.