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Finding the Fourth Proportional to 72,514.79, 108,746.13 and 25,117.12

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Solution

The fourth proportional to 72,514.79, 108,746.13 and 25,117.12 is: 37,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,514.79 : 108,746.13 = 25,117.12 : x
  2. Step 2: Convert to fraction form
    72,514.79/108,746.13 = 25,117.12/x
  3. Step 3: Cross multiply
    72,514.79x = 108,746.13 × 25,117.12
  4. Step 4: Simplify right side
    72,514.79x = 2,731,389,685.58
  5. Step 5: Solve for x
    x = 2,731,389,685.58/72,514.79
  6. Step 6: Final answer
    x = 37,666.65

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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.