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Finding the Fourth Proportional to 30,898.96, 46,348.48 and 8,712.16

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Solution

The fourth proportional to 30,898.96, 46,348.48 and 8,712.16 is: 13,068.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898.96 : 46,348.48 = 8,712.16 : x
  2. Step 2: Convert to fraction form
    30,898.96/46,348.48 = 8,712.16/x
  3. Step 3: Cross multiply
    30,898.96x = 46,348.48 × 8,712.16
  4. Step 4: Simplify right side
    30,898.96x = 403,795,373.52
  5. Step 5: Solve for x
    x = 403,795,373.52/30,898.96
  6. Step 6: Final answer
    x = 13,068.25

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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.