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Finding the Fourth Proportional to 61,000.64, 91,508.36 and 21,549.68

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Solution

The fourth proportional to 61,000.64, 91,508.36 and 21,549.68 is: 32,327.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,000.64 : 91,508.36 = 21,549.68 : x
  2. Step 2: Convert to fraction form
    61,000.64/91,508.36 = 21,549.68/x
  3. Step 3: Cross multiply
    61,000.64x = 91,508.36 × 21,549.68
  4. Step 4: Simplify right side
    61,000.64x = 1,971,975,875.32
  5. Step 5: Solve for x
    x = 1,971,975,875.32/61,000.64
  6. Step 6: Final answer
    x = 32,327.13

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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.