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Finding the Fourth Proportional to 66,328.20, 99,492.30 and 63,266.40

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Solution

The fourth proportional to 66,328.20, 99,492.30 and 63,266.40 is: 94,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,328.20 : 99,492.30 = 63,266.40 : x
  2. Step 2: Convert to fraction form
    66,328.20/99,492.30 = 63,266.40/x
  3. Step 3: Cross multiply
    66,328.20x = 99,492.30 × 63,266.40
  4. Step 4: Simplify right side
    66,328.20x = 6,294,519,648.72
  5. Step 5: Solve for x
    x = 6,294,519,648.72/66,328.20
  6. Step 6: Final answer
    x = 94,899.60

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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.