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Finding the Fourth Proportional to 29,332.52, 40,479.05 and 15,903.65

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Solution

The fourth proportional to 29,332.52, 40,479.05 and 15,903.65 is: 21,947.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,332.52 : 40,479.05 = 15,903.65 : x
  2. Step 2: Convert to fraction form
    29,332.52/40,479.05 = 15,903.65/x
  3. Step 3: Cross multiply
    29,332.52x = 40,479.05 × 15,903.65
  4. Step 4: Simplify right side
    29,332.52x = 643,764,784.49
  5. Step 5: Solve for x
    x = 643,764,784.49/29,332.52
  6. Step 6: Final answer
    x = 21,947.14

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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.