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Finding the Fourth Proportional to 65,606.32, 90,431.94 and 44,348.68

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Solution

The fourth proportional to 65,606.32, 90,431.94 and 44,348.68 is: 61,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,606.32 : 90,431.94 = 44,348.68 : x
  2. Step 2: Convert to fraction form
    65,606.32/90,431.94 = 44,348.68/x
  3. Step 3: Cross multiply
    65,606.32x = 90,431.94 × 44,348.68
  4. Step 4: Simplify right side
    65,606.32x = 4,010,537,168.84
  5. Step 5: Solve for x
    x = 4,010,537,168.84/65,606.32
  6. Step 6: Final answer
    x = 61,130.35

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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.