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Finding the Fourth Proportional to 13,068.51, 19,603.51 and 3,707.79

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Solution

The fourth proportional to 13,068.51, 19,603.51 and 3,707.79 is: 5,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,068.51 : 19,603.51 = 3,707.79 : x
  2. Step 2: Convert to fraction form
    13,068.51/19,603.51 = 3,707.79/x
  3. Step 3: Cross multiply
    13,068.51x = 19,603.51 × 3,707.79
  4. Step 4: Simplify right side
    13,068.51x = 72,685,736.26
  5. Step 5: Solve for x
    x = 72,685,736.26/13,068.51
  6. Step 6: Final answer
    x = 5,561.90

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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.