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Finding the Fourth Proportional to 66,159.48, 91,300.05 and 37,865.10

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Solution

The fourth proportional to 66,159.48, 91,300.05 and 37,865.10 is: 52,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,159.48 : 91,300.05 = 37,865.10 : x
  2. Step 2: Convert to fraction form
    66,159.48/91,300.05 = 37,865.10/x
  3. Step 3: Cross multiply
    66,159.48x = 91,300.05 × 37,865.10
  4. Step 4: Simplify right side
    66,159.48x = 3,457,085,523.26
  5. Step 5: Solve for x
    x = 3,457,085,523.26/66,159.48
  6. Step 6: Final answer
    x = 52,253.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.