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Finding the Fourth Proportional to 13,813.79, 19,063.04 and 7,526.17

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Solution

The fourth proportional to 13,813.79, 19,063.04 and 7,526.17 is: 10,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.79 : 19,063.04 = 7,526.17 : x
  2. Step 2: Convert to fraction form
    13,813.79/19,063.04 = 7,526.17/x
  3. Step 3: Cross multiply
    13,813.79x = 19,063.04 × 7,526.17
  4. Step 4: Simplify right side
    13,813.79x = 143,471,679.76
  5. Step 5: Solve for x
    x = 143,471,679.76/13,813.79
  6. Step 6: Final answer
    x = 10,386.12

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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.