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Finding the Fourth Proportional to 65,626.19, 90,532.62 and 42,955.19

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Solution

The fourth proportional to 65,626.19, 90,532.62 and 42,955.19 is: 59,257.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,626.19 : 90,532.62 = 42,955.19 : x
  2. Step 2: Convert to fraction form
    65,626.19/90,532.62 = 42,955.19/x
  3. Step 3: Cross multiply
    65,626.19x = 90,532.62 × 42,955.19
  4. Step 4: Simplify right side
    65,626.19x = 3,888,845,440.63
  5. Step 5: Solve for x
    x = 3,888,845,440.63/65,626.19
  6. Step 6: Final answer
    x = 59,257.53

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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.