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Finding the Fourth Proportional to 67,643.40, 101,465.10 and 46,648.20

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Solution

The fourth proportional to 67,643.40, 101,465.10 and 46,648.20 is: 69,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,643.40 : 101,465.10 = 46,648.20 : x
  2. Step 2: Convert to fraction form
    67,643.40/101,465.10 = 46,648.20/x
  3. Step 3: Cross multiply
    67,643.40x = 101,465.10 × 46,648.20
  4. Step 4: Simplify right side
    67,643.40x = 4,733,164,277.82
  5. Step 5: Solve for x
    x = 4,733,164,277.82/67,643.40
  6. Step 6: Final answer
    x = 69,972.30

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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.