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Finding the Fourth Proportional to 8,807.40, 13,210.42 and 3,258.14

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Solution

The fourth proportional to 8,807.40, 13,210.42 and 3,258.14 is: 4,886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.40 : 13,210.42 = 3,258.14 : x
  2. Step 2: Convert to fraction form
    8,807.40/13,210.42 = 3,258.14/x
  3. Step 3: Cross multiply
    8,807.40x = 13,210.42 × 3,258.14
  4. Step 4: Simplify right side
    8,807.40x = 43,041,397.82
  5. Step 5: Solve for x
    x = 43,041,397.82/8,807.40
  6. Step 6: Final answer
    x = 4,886.96

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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.