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Finding the Fourth Proportional to 65,608.76, 90,545.10 and 37,312.76

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Solution

The fourth proportional to 65,608.76, 90,545.10 and 37,312.76 is: 51,494.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,608.76 : 90,545.10 = 37,312.76 : x
  2. Step 2: Convert to fraction form
    65,608.76/90,545.10 = 37,312.76/x
  3. Step 3: Cross multiply
    65,608.76x = 90,545.10 × 37,312.76
  4. Step 4: Simplify right side
    65,608.76x = 3,378,487,585.48
  5. Step 5: Solve for x
    x = 3,378,487,585.48/65,608.76
  6. Step 6: Final answer
    x = 51,494.46

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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.