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Finding the Fourth Proportional to 65,990.24, 90,944.40 and 46,870.84

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Solution

The fourth proportional to 65,990.24, 90,944.40 and 46,870.84 is: 64,595.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,990.24 : 90,944.40 = 46,870.84 : x
  2. Step 2: Convert to fraction form
    65,990.24/90,944.40 = 46,870.84/x
  3. Step 3: Cross multiply
    65,990.24x = 90,944.40 × 46,870.84
  4. Step 4: Simplify right side
    65,990.24x = 4,262,640,421.30
  5. Step 5: Solve for x
    x = 4,262,640,421.30/65,990.24
  6. Step 6: Final answer
    x = 64,595.01

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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.