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Finding the Fourth Proportional to 65,064.99, 89,788.95 and 35,256.99

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Solution

The fourth proportional to 65,064.99, 89,788.95 and 35,256.99 is: 48,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,064.99 : 89,788.95 = 35,256.99 : x
  2. Step 2: Convert to fraction form
    65,064.99/89,788.95 = 35,256.99/x
  3. Step 3: Cross multiply
    65,064.99x = 89,788.95 × 35,256.99
  4. Step 4: Simplify right side
    65,064.99x = 3,165,688,112.26
  5. Step 5: Solve for x
    x = 3,165,688,112.26/65,064.99
  6. Step 6: Final answer
    x = 48,654.25

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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.