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Finding the Fourth Proportional to 62,528.76, 86,265 and 38,613.51

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Solution

The fourth proportional to 62,528.76, 86,265 and 38,613.51 is: 53,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,528.76 : 86,265 = 38,613.51 : x
  2. Step 2: Convert to fraction form
    62,528.76/86,265 = 38,613.51/x
  3. Step 3: Cross multiply
    62,528.76x = 86,265 × 38,613.51
  4. Step 4: Simplify right side
    62,528.76x = 3,330,994,440.15
  5. Step 5: Solve for x
    x = 3,330,994,440.15/62,528.76
  6. Step 6: Final answer
    x = 53,271.40

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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.