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Finding the Fourth Proportional to 65,353.88, 98,030.80 and 18,606.76

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Solution

The fourth proportional to 65,353.88, 98,030.80 and 18,606.76 is: 27,910.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,353.88 : 98,030.80 = 18,606.76 : x
  2. Step 2: Convert to fraction form
    65,353.88/98,030.80 = 18,606.76/x
  3. Step 3: Cross multiply
    65,353.88x = 98,030.80 × 18,606.76
  4. Step 4: Simplify right side
    65,353.88x = 1,824,035,276.61
  5. Step 5: Solve for x
    x = 1,824,035,276.61/65,353.88
  6. Step 6: Final answer
    x = 27,910.13

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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.