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Finding the Fourth Proportional to 46,643.48, 69,964.88 and 13,363.58

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Solution

The fourth proportional to 46,643.48, 69,964.88 and 13,363.58 is: 20,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,643.48 : 69,964.88 = 13,363.58 : x
  2. Step 2: Convert to fraction form
    46,643.48/69,964.88 = 13,363.58/x
  3. Step 3: Cross multiply
    46,643.48x = 69,964.88 × 13,363.58
  4. Step 4: Simplify right side
    46,643.48x = 934,980,854.43
  5. Step 5: Solve for x
    x = 934,980,854.43/46,643.48
  6. Step 6: Final answer
    x = 20,045.26

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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.