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Finding the Fourth Proportional to 9,058.80, 12,509.68 and 8,567.92

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Solution

The fourth proportional to 9,058.80, 12,509.68 and 8,567.92 is: 11,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,058.80 : 12,509.68 = 8,567.92 : x
  2. Step 2: Convert to fraction form
    9,058.80/12,509.68 = 8,567.92/x
  3. Step 3: Cross multiply
    9,058.80x = 12,509.68 × 8,567.92
  4. Step 4: Simplify right side
    9,058.80x = 107,181,937.47
  5. Step 5: Solve for x
    x = 107,181,937.47/9,058.80
  6. Step 6: Final answer
    x = 11,831.80

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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.