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Finding the Fourth Proportional to 32,718.60, 45,151.02 and 19,290.42

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Solution

The fourth proportional to 32,718.60, 45,151.02 and 19,290.42 is: 26,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,718.60 : 45,151.02 = 19,290.42 : x
  2. Step 2: Convert to fraction form
    32,718.60/45,151.02 = 19,290.42/x
  3. Step 3: Cross multiply
    32,718.60x = 45,151.02 × 19,290.42
  4. Step 4: Simplify right side
    32,718.60x = 870,982,139.23
  5. Step 5: Solve for x
    x = 870,982,139.23/32,718.60
  6. Step 6: Final answer
    x = 26,620.40

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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.