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Finding the Fourth Proportional to 65,359.60, 90,196.80 and 37,065.76

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Solution

The fourth proportional to 65,359.60, 90,196.80 and 37,065.76 is: 51,151.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,359.60 : 90,196.80 = 37,065.76 : x
  2. Step 2: Convert to fraction form
    65,359.60/90,196.80 = 37,065.76/x
  3. Step 3: Cross multiply
    65,359.60x = 90,196.80 × 37,065.76
  4. Step 4: Simplify right side
    65,359.60x = 3,343,212,941.57
  5. Step 5: Solve for x
    x = 3,343,212,941.57/65,359.60
  6. Step 6: Final answer
    x = 51,151.06

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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.