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Finding the Fourth Proportional to 13,547.94, 18,696.87 and 7,579.24

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Solution

The fourth proportional to 13,547.94, 18,696.87 and 7,579.24 is: 10,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.94 : 18,696.87 = 7,579.24 : x
  2. Step 2: Convert to fraction form
    13,547.94/18,696.87 = 7,579.24/x
  3. Step 3: Cross multiply
    13,547.94x = 18,696.87 × 7,579.24
  4. Step 4: Simplify right side
    13,547.94x = 141,708,064.98
  5. Step 5: Solve for x
    x = 141,708,064.98/13,547.94
  6. Step 6: Final answer
    x = 10,459.75

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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.