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Finding the Fourth Proportional to 70,278.80, 105,425.56 and 22,897.56

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Solution

The fourth proportional to 70,278.80, 105,425.56 and 22,897.56 is: 34,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,278.80 : 105,425.56 = 22,897.56 : x
  2. Step 2: Convert to fraction form
    70,278.80/105,425.56 = 22,897.56/x
  3. Step 3: Cross multiply
    70,278.80x = 105,425.56 × 22,897.56
  4. Step 4: Simplify right side
    70,278.80x = 2,413,988,085.63
  5. Step 5: Solve for x
    x = 2,413,988,085.63/70,278.80
  6. Step 6: Final answer
    x = 34,348.74

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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.