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Finding the Fourth Proportional to 8,903.84, 12,287.40 and 4,924.88

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Solution

The fourth proportional to 8,903.84, 12,287.40 and 4,924.88 is: 6,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.84 : 12,287.40 = 4,924.88 : x
  2. Step 2: Convert to fraction form
    8,903.84/12,287.40 = 4,924.88/x
  3. Step 3: Cross multiply
    8,903.84x = 12,287.40 × 4,924.88
  4. Step 4: Simplify right side
    8,903.84x = 60,513,970.51
  5. Step 5: Solve for x
    x = 60,513,970.51/8,903.84
  6. Step 6: Final answer
    x = 6,796.39

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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.