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Finding the Fourth Proportional to 13,073.48, 19,579.04 and 7,141.51

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Solution

The fourth proportional to 13,073.48, 19,579.04 and 7,141.51 is: 10,695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.48 : 19,579.04 = 7,141.51 : x
  2. Step 2: Convert to fraction form
    13,073.48/19,579.04 = 7,141.51/x
  3. Step 3: Cross multiply
    13,073.48x = 19,579.04 × 7,141.51
  4. Step 4: Simplify right side
    13,073.48x = 139,823,925.50
  5. Step 5: Solve for x
    x = 139,823,925.50/13,073.48
  6. Step 6: Final answer
    x = 10,695.23

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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.