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Finding the Fourth Proportional to 60,117.50, 90,191.10 and 18,564.50

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Solution

The fourth proportional to 60,117.50, 90,191.10 and 18,564.50 is: 27,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,117.50 : 90,191.10 = 18,564.50 : x
  2. Step 2: Convert to fraction form
    60,117.50/90,191.10 = 18,564.50/x
  3. Step 3: Cross multiply
    60,117.50x = 90,191.10 × 18,564.50
  4. Step 4: Simplify right side
    60,117.50x = 1,674,352,675.95
  5. Step 5: Solve for x
    x = 1,674,352,675.95/60,117.50
  6. Step 6: Final answer
    x = 27,851.34

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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.