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Finding the Fourth Proportional to 60,572.19, 90,876.90 and 31,010.78

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Solution

The fourth proportional to 60,572.19, 90,876.90 and 31,010.78 is: 46,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,572.19 : 90,876.90 = 31,010.78 : x
  2. Step 2: Convert to fraction form
    60,572.19/90,876.90 = 31,010.78/x
  3. Step 3: Cross multiply
    60,572.19x = 90,876.90 × 31,010.78
  4. Step 4: Simplify right side
    60,572.19x = 2,818,163,552.98
  5. Step 5: Solve for x
    x = 2,818,163,552.98/60,572.19
  6. Step 6: Final answer
    x = 46,525.70

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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.