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Finding the Fourth Proportional to 8,929.07, 12,322.12 and 4,950.23

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Solution

The fourth proportional to 8,929.07, 12,322.12 and 4,950.23 is: 6,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.07 : 12,322.12 = 4,950.23 : x
  2. Step 2: Convert to fraction form
    8,929.07/12,322.12 = 4,950.23/x
  3. Step 3: Cross multiply
    8,929.07x = 12,322.12 × 4,950.23
  4. Step 4: Simplify right side
    8,929.07x = 60,997,254.10
  5. Step 5: Solve for x
    x = 60,997,254.10/8,929.07
  6. Step 6: Final answer
    x = 6,831.31

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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.