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Finding the Fourth Proportional to 66,346.26, 91,492.65 and 56,302.26

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Solution

The fourth proportional to 66,346.26, 91,492.65 and 56,302.26 is: 77,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,346.26 : 91,492.65 = 56,302.26 : x
  2. Step 2: Convert to fraction form
    66,346.26/91,492.65 = 56,302.26/x
  3. Step 3: Cross multiply
    66,346.26x = 91,492.65 × 56,302.26
  4. Step 4: Simplify right side
    66,346.26x = 5,151,242,968.39
  5. Step 5: Solve for x
    x = 5,151,242,968.39/66,346.26
  6. Step 6: Final answer
    x = 77,641.80

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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.