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Finding the Fourth Proportional to 9,671.51, 13,352.51 and 6,319.93

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Solution

The fourth proportional to 9,671.51, 13,352.51 and 6,319.93 is: 8,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,671.51 : 13,352.51 = 6,319.93 : x
  2. Step 2: Convert to fraction form
    9,671.51/13,352.51 = 6,319.93/x
  3. Step 3: Cross multiply
    9,671.51x = 13,352.51 × 6,319.93
  4. Step 4: Simplify right side
    9,671.51x = 84,386,937.98
  5. Step 5: Solve for x
    x = 84,386,937.98/9,671.51
  6. Step 6: Final answer
    x = 8,725.31

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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.