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Finding the Fourth Proportional to 7,864.52, 10,853.52 and 4,328.51

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Solution

The fourth proportional to 7,864.52, 10,853.52 and 4,328.51 is: 5,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.52 : 10,853.52 = 4,328.51 : x
  2. Step 2: Convert to fraction form
    7,864.52/10,853.52 = 4,328.51/x
  3. Step 3: Cross multiply
    7,864.52x = 10,853.52 × 4,328.51
  4. Step 4: Simplify right side
    7,864.52x = 46,979,569.86
  5. Step 5: Solve for x
    x = 46,979,569.86/7,864.52
  6. Step 6: Final answer
    x = 5,973.61

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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.