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Finding the Fourth Proportional to 8,929.71, 12,323.75 and 4,952.12

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Solution

The fourth proportional to 8,929.71, 12,323.75 and 4,952.12 is: 6,834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.71 : 12,323.75 = 4,952.12 : x
  2. Step 2: Convert to fraction form
    8,929.71/12,323.75 = 4,952.12/x
  3. Step 3: Cross multiply
    8,929.71x = 12,323.75 × 4,952.12
  4. Step 4: Simplify right side
    8,929.71x = 61,028,602.47
  5. Step 5: Solve for x
    x = 61,028,602.47/8,929.71
  6. Step 6: Final answer
    x = 6,834.33

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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.