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Finding the Fourth Proportional to 30,985.04, 46,484.16 and 8,805.20

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Solution

The fourth proportional to 30,985.04, 46,484.16 and 8,805.20 is: 13,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985.04 : 46,484.16 = 8,805.20 : x
  2. Step 2: Convert to fraction form
    30,985.04/46,484.16 = 8,805.20/x
  3. Step 3: Cross multiply
    30,985.04x = 46,484.16 × 8,805.20
  4. Step 4: Simplify right side
    30,985.04x = 409,302,325.63
  5. Step 5: Solve for x
    x = 409,302,325.63/30,985.04
  6. Step 6: Final answer
    x = 13,209.68

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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.