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Finding the Fourth Proportional to 8,970.59, 13,457.55 and 2,731.16

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Solution

The fourth proportional to 8,970.59, 13,457.55 and 2,731.16 is: 4,097.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.59 : 13,457.55 = 2,731.16 : x
  2. Step 2: Convert to fraction form
    8,970.59/13,457.55 = 2,731.16/x
  3. Step 3: Cross multiply
    8,970.59x = 13,457.55 × 2,731.16
  4. Step 4: Simplify right side
    8,970.59x = 36,754,722.26
  5. Step 5: Solve for x
    x = 36,754,722.26/8,970.59
  6. Step 6: Final answer
    x = 4,097.25

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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.