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Finding the Fourth Proportional to 46,788.32, 70,182.48 and 13,513.16

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Solution

The fourth proportional to 46,788.32, 70,182.48 and 13,513.16 is: 20,269.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,788.32 : 70,182.48 = 13,513.16 : x
  2. Step 2: Convert to fraction form
    46,788.32/70,182.48 = 13,513.16/x
  3. Step 3: Cross multiply
    46,788.32x = 70,182.48 × 13,513.16
  4. Step 4: Simplify right side
    46,788.32x = 948,387,081.44
  5. Step 5: Solve for x
    x = 948,387,081.44/46,788.32
  6. Step 6: Final answer
    x = 20,269.74

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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.