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Finding the Fourth Proportional to 29,216.52, 40,320.90 and 16,642.08

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Solution

The fourth proportional to 29,216.52, 40,320.90 and 16,642.08 is: 22,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,216.52 : 40,320.90 = 16,642.08 : x
  2. Step 2: Convert to fraction form
    29,216.52/40,320.90 = 16,642.08/x
  3. Step 3: Cross multiply
    29,216.52x = 40,320.90 × 16,642.08
  4. Step 4: Simplify right side
    29,216.52x = 671,023,643.47
  5. Step 5: Solve for x
    x = 671,023,643.47/29,216.52
  6. Step 6: Final answer
    x = 22,967.27

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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.