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Finding the Fourth Proportional to 66,495.18, 99,001.09 and 65,564.49

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Solution

The fourth proportional to 66,495.18, 99,001.09 and 65,564.49 is: 97,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,495.18 : 99,001.09 = 65,564.49 : x
  2. Step 2: Convert to fraction form
    66,495.18/99,001.09 = 65,564.49/x
  3. Step 3: Cross multiply
    66,495.18x = 99,001.09 × 65,564.49
  4. Step 4: Simplify right side
    66,495.18x = 6,490,955,975.29
  5. Step 5: Solve for x
    x = 6,490,955,975.29/66,495.18
  6. Step 6: Final answer
    x = 97,615.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.