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Finding the Fourth Proportional to 19,322.40, 29,005.20 and 14,959.20

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Solution

The fourth proportional to 19,322.40, 29,005.20 and 14,959.20 is: 22,455.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.40 : 29,005.20 = 14,959.20 : x
  2. Step 2: Convert to fraction form
    19,322.40/29,005.20 = 14,959.20/x
  3. Step 3: Cross multiply
    19,322.40x = 29,005.20 × 14,959.20
  4. Step 4: Simplify right side
    19,322.40x = 433,894,587.84
  5. Step 5: Solve for x
    x = 433,894,587.84/19,322.40
  6. Step 6: Final answer
    x = 22,455.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.