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Finding the Fourth Proportional to 72,020.76, 108,070.02 and 35,084.76

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Solution

The fourth proportional to 72,020.76, 108,070.02 and 35,084.76 is: 52,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,020.76 : 108,070.02 = 35,084.76 : x
  2. Step 2: Convert to fraction form
    72,020.76/108,070.02 = 35,084.76/x
  3. Step 3: Cross multiply
    72,020.76x = 108,070.02 × 35,084.76
  4. Step 4: Simplify right side
    72,020.76x = 3,791,610,714.90
  5. Step 5: Solve for x
    x = 3,791,610,714.90/72,020.76
  6. Step 6: Final answer
    x = 52,646.08

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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.