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Finding the Fourth Proportional to 8,478.03, 11,700.06 and 4,701.60

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Solution

The fourth proportional to 8,478.03, 11,700.06 and 4,701.60 is: 6,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478.03 : 11,700.06 = 4,701.60 : x
  2. Step 2: Convert to fraction form
    8,478.03/11,700.06 = 4,701.60/x
  3. Step 3: Cross multiply
    8,478.03x = 11,700.06 × 4,701.60
  4. Step 4: Simplify right side
    8,478.03x = 55,009,002.10
  5. Step 5: Solve for x
    x = 55,009,002.10/8,478.03
  6. Step 6: Final answer
    x = 6,488.42

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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.