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Finding the Fourth Proportional to 60,071.55, 90,120.26 and 17,955.06

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Solution

The fourth proportional to 60,071.55, 90,120.26 and 17,955.06 is: 26,936.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,071.55 : 90,120.26 = 17,955.06 : x
  2. Step 2: Convert to fraction form
    60,071.55/90,120.26 = 17,955.06/x
  3. Step 3: Cross multiply
    60,071.55x = 90,120.26 × 17,955.06
  4. Step 4: Simplify right side
    60,071.55x = 1,618,114,675.52
  5. Step 5: Solve for x
    x = 1,618,114,675.52/60,071.55
  6. Step 6: Final answer
    x = 26,936.46

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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.